mariadb

Commit Graph

Author	SHA1	Message	Date
unknown	e5f8163b88	first cut of WL#3337 (New event scheduler locking infrastructure). Infrastructure built. Added the foreseen files and change Makefile.am/CMakeLists.txt accordingly. libmysqld/Makefile.am: add new files. this is first cut of WL3337u sql/CMakeLists.txt: add more files to build sql/Makefile.am: add new files. this is first cut of WL3337 sql/event_scheduler.cc: event_timed.h -> event_data_objects.h (WL#3337) sql/events.cc: event_timed.h -> event_data_objects.h (WL#3337) sql/share/errmsg.txt: new error message sql/event_data_objects.cc: event_timed.h -> event_data_objects.h (WL#3337) sql/event_data_objects.h: event_timed.h -> event_data_objects.h (WL#3337) sql/sql_parse.cc: event_timed.h -> event_data_objects.h (WL#3337) sql/sql_show.cc: event_timed.h -> event_data_objects.h (WL#3337) sql/sql_yacc.yy: event_timed.h -> event_data_objects.h (WL#3337)	20 years ago
unknown	d6bcbfbe92	A fix and a test case for Bug#19022 "Memory bug when switching db during trigger execution" Bug#17199 "Problem when view calls function from another database." Bug#18444 "Fully qualified stored function names don't work correctly in SELECT statements" Documentation note: this patch introduces a change in behaviour of prepared statements. This patch adds a few new invariants with regard to how THD::db should be used. These invariants should be preserved in future: - one should never refer to THD::db by pointer and always make a deep copy (strmake, strdup) - one should never compare two databases by pointer, but use strncmp or my_strncasecmp - TABLE_LIST object table->db should be always initialized in the parser or by creator of the object. For prepared statements it means that if the current database is changed after a statement is prepared, the database that was current at prepare remains active. This also means that you can not prepare a statement that implicitly refers to the current database if the latter is not set. This is not documented, and therefore needs documentation. This is NOT a change in behavior for almost all SQL statements except: - ALTER TABLE t1 RENAME t2 - OPTIMIZE TABLE t1 - ANALYZE TABLE t1 - TRUNCATE TABLE t1 -- until this patch t1 or t2 could be evaluated at the first execution of prepared statement. CURRENT_DATABASE() still works OK and is evaluated at every execution of prepared statement. Note, that in stored routines this is not an issue as the default database is the database of the stored procedure and "use" statement is prohibited in stored routines. This patch makes obsolete the use of check_db_used (it was never used in the old code too) and all other places that check for table->db and assign it from THD::db if it's NULL, except the parser. How this patch was created: THD::{db,db_length} were replaced with a LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were manually checked and: - if the place uses thd->db by pointer, it was fixed to make a deep copy - if a place compared two db pointers, it was fixed to compare them by value (via strcmp/my_strcasecmp, whatever was approproate) Then this intermediate patch was used to write a smaller patch that does the same thing but without a rename. TODO in 5.1: - remove check_db_used - deploy THD::set_db in mysql_change_db See also comments to individual files. mysql-test/r/create.result: Modify the result file: a database can never be NULL. mysql-test/r/ps.result: Update test results (Bug#17199 et al) mysql-test/r/sp.result: Update test results (Bug#17199 et al) mysql-test/t/create.test: Update the id of the returned error. mysql-test/t/ps.test: Add test coverage for prepared statements and current database. In scope of work on Bug#17199 "Problem when view calls function from another database." mysql-test/t/sp.test: Add a test case for Bug#17199 "Problem when view calls function from another database." and Bug#18444 "Fully qualified stored function names don't work correctly in SELECT statements". Test a complementary problem. sql/item_strfunc.cc: Touch the code that reads thd->db (cleanup). sql/log_event.cc: While we are at it, replace direct access to thd->db with a method. Should simplify future conversion of THD::db to LEX_STRING. sql/slave.cc: While we are at it, replace direct access to thd->db with a method. Should simplify future conversion of THD::db to LEX_STRING. sql/slave.h: Remove a declaration for a method that is used only in one module. sql/sp.cc: Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand this function and ensure that it has no bugs. sql/sp.h: Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment. sql/sp_head.cc: - drop sp_name_current_db_new - a creator of sp_name class that was used when sp_name was created for an identifier without an explicitly initialized database. Now we pass thd->db to constructor of sp_name right in the parser. - rewrite sp_head::init_strings: name->m_db is always set now - use the new variant of sp_use_new_db - we don't need to update thd->db with SP MEM_ROOT pointer anymore when parsing a stored procedure, as noone will refer to it (yes!) sql/sp_head.h: - remove unneded methods and members sql/sql_class.h: - introduce 3 THD methods to work with THD::db: .set_db to assign the current database .reset_db to reset the current database (temporarily) or set it to NULL .opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL sql/sql_db.cc: While we are at it, replace direct access to thd->db with a method. Should simplify future conversion of THD::db to LEX_STRING. sql/sql_insert.cc: - replace checks with asserts: table_list->db must be always set in the parser. sql/sql_lex.h: - add a comment sql/sql_parse.cc: - implement the invariant described in the changeset comment. - remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE: now db_load_routine uses its own LEX object and doesn't damage the main LEX. - add DBUG_ASSERT(0) to unused "check_db_used" sql/sql_table.cc: - replace a check with an assert (table_ident->db) sql/sql_trigger.cc: While we are at it, replace direct access to thd->db with a method. Should simplify future conversion of THD::db to LEX_STRING. sql/sql_udf.cc: - use thd->set_db instead of direct modification of to thd->db sql/sql_view.cc: - replace a check with an assert (view->db) sql/sql_yacc.yy: - make sure that we always copy table->db or name->db or ident->db or select_lex->db from thd->db if the former is not set. If thd->db is not set but is accessed, return an error. sql/tztime.cc: - be nice, never copy thd->db by pointer.	20 years ago
unknown	1c2a13b894	Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. The stress test suite revealed some deadlocks. Some were related to the new condition variable (COND_global_read_lock) and some were general problems with the global read lock. It is now necessary to signal COND_global_read_lock whenever COND_refresh is signalled. We need to wait for the release of a global read lock if one is set before every operation that requires a write lock. But we must not wait if we have locked tables by LOCK TABLES. After setting a global read lock a thread waits until all write locks are released. mysql-test/r/lock_multi.result: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Added test results. mysql-test/t/lock_multi.test: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Added tests for possible deadlocks that did not occur with the stress test suite. mysys/thr_lock.c: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Added a protection against an infinite loop that occurs with the test case for Bug #20662. sql/lock.cc: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Signal COND_global_read_lock whenever COND_refresh is signalled by using the new function broadcast_refresh(). Added the definition of a new function that signals COND_global_read_lock whenever COND_refresh is signalled. sql/mysql_priv.h: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Added a declaration for a new function that signals COND_global_read_lock whenever COND_refresh is signalled. sql/sql_base.cc: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Signal COND_global_read_lock whenever COND_refresh is signalled by using the new function broadcast_refresh(). sql/sql_handler.cc: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Signal COND_global_read_lock whenever COND_refresh is signalled by using the new function broadcast_refresh(). sql/sql_insert.cc: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Removed global read lock handling from inside of INSERT DELAYED. It is handled on a higher level now. sql/sql_parse.cc: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Wait for the release of a global read lock if one is set before every operation that requires a write lock. But don't wait if locked tables exist already. sql/sql_table.cc: Bug#16986 - Deadlock condition with MyISAM tables Addendum fixes after changing the condition variable for the global read lock. Removed global read lock handling from inside of CREATE TABLE. It is handled on a higher level now. Signal COND_global_read_lock whenever COND_refresh is signalled by using the new function broadcast_refresh().	20 years ago
unknown	d6cf50ca8b	Fix for bug #18897 "Events: unauthorized action possible with alter event rename". ALTER EVENT ... RENAME statement hasn't checked privileges for the target database. It also caused server crashes when target database was not specified explicitly and there was no current database. This fix adds missing privilege check and check for the case when target database is not specified explicitly or implicitly. mysql-test/r/events_bugs.result: update result mysql-test/t/events_bugs.test: add test case for bug 18897 Events: unauthorized action possible with alter event rename: - test rename to db the user does not have access to - test rename when there is no selected db sql/sql_parse.cc: Additional check for the situation when no db is selected. CREATE EVENT abc and ALTER EVENT db.abc RENAME TO xyz, and DROP EVENT abc won't work if there is no selected DB.	20 years ago
unknown	2b5995479a	BUG#19309: Problem with calling proecdures twice Need to flag when a copy is needed to not overwrite a create_info object connected to the lex structure sql/mysql_priv.h: Need to flag when a copy is needed to not overwrite a create_info object connected to the lex structure sql/sql_insert.cc: Need to flag when a copy is needed to not overwrite a create_info object connected to the lex structure sql/sql_parse.cc: Need to flag when a copy is needed to not overwrite a create_info object connected to the lex structure sql/sql_table.cc: Need to flag when a copy is needed to not overwrite a create_info object connected to the lex structure	20 years ago
unknown	8103b543e7	Fixed typo that was forgot in last changeset.	20 years ago
unknown	6c78715161	Bug #20482 : failure on Create join view with sources views/tables in different schemas The function check_one_table_access() called to check access to tables in SELECT/INSERT/UPDATE was doing additional checks/modifications that don't hold in the context of setup_tables_and_check_access(). That's why the check_one_table() was split into two : the functionality needed by setup_tables_and_check_access() into check_single_table_access() and the rest of the functionality stays in check_one_table_access() that is made to call the new check_single_table_access() function. mysql-test/r/view_grant.result: Bug #20482: failure on Create join view with sources views/tables in different schemas - test suite for the bug mysql-test/t/view_grant.test: Bug #20482: failure on Create join view with sources views/tables in different schemas - test suite for the bug sql/mysql_priv.h: Bug #20482: failure on Create join view with sources views/tables in different schemas - check_one_table_access split into 2 sql/sql_base.cc: Bug #20482: failure on Create join view with sources views/tables in different schemas - the new sub-function called sql/sql_parse.cc: Bug #20482: failure on Create join view with sources views/tables in different schemas - check_one_table_access() split into two : check_single_table_access() to actually check access to the table(ro) and check_one_table_access() that calls check_single_table_access() and checks also the tables belonging to sub selects or implicitly opened tables.	20 years ago
unknown	e9452db1c1	Fix for bug#19634 "Re-execution of multi-delete which involve trigger/stored function crashes server". Attempts to execute prepared multi-delete statement which involved trigger or stored function caused server crashes (the same happened for such statements included in stored procedures in cases when one tried to execute them more than once). The problem was caused by yet another incorrect usage of check_table_access() routine (the latter assumes that table list which it gets as argument corresponds to value LEX::query_tables_own_last). We solve this problem by juggling with LEX::query_tables_own_last value when we call check_table_access() for LEX::auxilliary_table_list (better solution is too intrusive and should be done in 5.1). mysql-test/r/sp-prelocking.result: Added test for bug#19634 "Re-execution of multi-delete which involve trigger/ stored function crashes server". mysql-test/t/sp-prelocking.test: Added test for bug#19634 "Re-execution of multi-delete which involve trigger/ stored function crashes server". sql/sql_parse.cc: To call safely check_table_access() for LEX::auxilliary_table_list we have to juggle with LEX::query_tables_own_last value.	20 years ago
unknown	f3a56a17da	SHOW STATUS does not anymore change local status variables (except com_show_status). Global status variables are still updated. SHOW STATUS are not anymore put in slow query log because of no index usage. Implemntation done by removing orig_sql_command and moving logic of SHOW STATUS to mysql_excute_command() This simplifies code and allows us to remove some if statements all over the code. Upgraded uc_update_queries[] to sql_command_flags and added more bitmaps to better categorize commands. This allowed some overall simplifaction when testing sql_command. Fixes bugs: Bug#10210: running SHOW STATUS increments counters it shouldn't Bug#19764: SHOW commands end up in the slow log as table scans mysql-test/r/grant_cache.result: Fixed results after SHOW STATUS doesn't anymore affect status variables mysql-test/r/information_schema.result: Added extra test to cover more code mysql-test/r/query_cache.result: Remove resuts from previous tests mysql-test/r/status.result: Added more tests for testing of last_query_cost and how SHOW STATUS affects status variables. (Bug#10210) mysql-test/r/temp_table.result: Fixed results after SHOW STATUS doesn't anymore affect status variables mysql-test/r/union.result: Fixed results after SHOW STATUS is not logged to slow query log (Bug#19764) mysql-test/t/events_microsec.test: Disable warnings at init mysql-test/t/information_schema.test: Added extra test to cover more code mysql-test/t/query_cache.test: Remove resuts from previous tests mysql-test/t/status.test: Added more tests for testing of last_query_cost and how SHOW STATUS affects status variables. (Bug #10210) sql/mysql_priv.h: Added 'sql_command_flags' sql/sql_class.cc: New function add_diff_to_status(), used to update global status variables when using SHOW STATUS sql/sql_class.h: New function 'fill_information_schema_tables()' (One could not anymore use fill_derived_tables() for this as only_view_structures() is not relevant for information schema tables) Added defines for bit flags in sql_command_flags[] sql/sql_lex.cc: Remove orig_sql_command sql/sql_lex.h: Remove orig_sql_command sql/sql_parse.cc: Rename uc_update_queries -> sql_command_flags. Enhanced 'sql_command_flags' to better classify SQL commands uc_update_queries[] != 0 is changed to (sql_command_flags[] & CF_CHANGES_DATA) lex->orig_sql_command == SQLCOM_END is changed to (sql_command_flags[lex->sql_command] & CF_STATUS_COMMAND) == 0) Simplify incrementing of thd->status_var.com_stat[] as we don't have to do special handling for SHOW commands. Split SQLCOM_SELECT handling in mysql_execute_command() to a separate function. Added special handling of SHOW STATUS commands in mysql_execute_command() and call common SQLCOM_SELECT handling. These changes allows us to easily fix that we save and restore status variables during execution of a SHOW STATUS command. Don't log SHOW STATUS commands to slow query log. This fixes Bug#10210 and Bug#19764 without adding additional 'if' code. (The new code is faster than the original as we now have fewer if's than before) sql/sql_prepare.cc: Clean up prepare-check handling of SQLCOM commands by using sql_command_flags[] This simplifes code and ensures that code works even if someone forgets to put a new status commands into the switch statement. sql/sql_select.cc: Remove special handling of SHOW STATUS. (This is now done in SQLCOM_SHOW_STATUS part in mysql_execute_command()) sql/sql_show.cc: Remove orig_sql_command Only change sql_command during 'open_normal_and_derived_tables()' (for views) and not for the full duration of generating data. Changed 'show status' to use thd->initial_status_var to ensure that the current statement is not affecting the to-be-used values. Use thd->fill_information_schema_tables() instead of 'thd->fill_derived_tables()' as the later wrongly checks the value of sql_command. sql/sql_yacc.yy: Remove usage of orig_sql_command. One side effect of this is that we need to test for cursors if the current command is a SELECT or a SHOW command. sql/structs.h: Updated comment	20 years ago
unknown	8b6c2d312b	bug #20318 (ctype_ucs2_def test fails with embedded) there was two problems about charsets in embedded server 1. mysys/charset.c - defined there default_charset_info variable is modified by both server and client code (particularly when --default-charset option is handled) In embedded server we get two codelines modifying one variable. I created separate default_client_charset_info for client code 2. mysql->charset and mysql->options.charset initialization isn't properly done for embedded server - necessary calls added include/sql_common.h: client charset info default declared libmysqld/lib_sql.cc: thd_init_client_charset calls added libmysqld/libmysqld.c: check_embedded_connection moved to client.c to avoid code duplication sql-common/client.c: charset initialization moved to mysql_init_character_set to be used in embedded server sql/sql_parse.cc: thread client charset initialization moved to thd_init_client_charset to avoid code duplication	20 years ago
unknown	b7e27e80d9	Bug #18080 : INSERT ... SELECT ... JOIN results in ambiguous field list error There was an incomplete reset of the name resolution context, that caused INSERT ... SELECT ... JOIN statements to resolve not by joint row type calculated for the join. Removed the redundant re-initialization of the context, because mysql_insert_select_prepare() now correctly saves/restores the context. mysql-test/r/insert_select.result: Bug #18080: INSERT ... SELECT ... JOIN results in ambiguous field list error - testsuite for the bug mysql-test/t/insert_select.test: Bug #18080: INSERT ... SELECT ... JOIN results in ambiguous field list error - testsuite for the bug sql/sql_parse.cc: Bug #18080: INSERT ... SELECT ... JOIN results in ambiguous field list error - remove an incomplete reset of the context because the mentioned function correctly saves/restores the context.	20 years ago
unknown	e7daa49761	Bug #20363 : Create view on just created view is now denied There was a wrong determination of the DB name (witch is not always the one in TABLE_LIST because derived tables may be calculated using temp tables that have their db name set to ""). The fix determines the database name according to the type of table reference, and calls the function check_access() with the correct db name so the correct set of grants is found. mysql-test/r/view_grant.result: testsuite for the bug mysql-test/t/view_grant.test: testsuite for the bug sql/sql_parse.cc: correct determination of the db name.	20 years ago
unknown	388e8843cd	Post-merge fixes	20 years ago
unknown	99438424ac	Reorganize, physically the events code Unify method naming -> create/update/drop_event Move class Event_timed to event_timed.h class Events is in events.h (renamed from event.h) The implementation is in events.cc (renamed from event.h) BitKeeper/deleted/.del-event_executor.cc~f4a4645b973838ab: Delete: sql/event_executor.cc include/my_time.h: add a boundary libmysqld/CMakeLists.txt: event.cc -> events.cc libmysqld/Makefile.am: event.cc -> event.cc sql/CMakeLists.txt: event.cc -> events.cc sql/Makefile.am: event.cc -> events.cc event_priv.h -> events_priv.h sql/event_scheduler.cc: event.h -> events.h add_event -> create_event replace_event -> update_event() event_timed_compare_q is only used in event_scheduler.cc , so moving it from event.cc and making it static sql/event_scheduler.h: add_event -> create_event replace_event -> update_event sql/event_timed.cc: moved extern interval_type_to_name to mysql_priv.h sql/mysql_priv.h: moved my_time_compare to time.cc sql/mysqld.cc: event.h -> events.h sql/sql_db.cc: event.h -> events.h sql/sql_parse.cc: event.h -> events.h class Event_timed moved to event_timed.h sql/sql_show.cc: event.h -> events.h class Event_timed moved to event_timed.h sql/sql_yacc.yy: event.h -> events.h class Event_timed moved to event_timed.h sql/events.cc: add_event -> create_event replace_event -> update_event event_timed_compare_q moved to event_scheduler.cc sql/events.h: class Event_timed moved to event_timed.h sql/events_priv.h: my_time_compare moved to mysql_priv.h event_timed_compare_q is static in event_scheduler.cc sql/time.cc: moved interval_type_to_name from event.cc to here. BitKeeper/etc/ignore: Added libmysqld/events.cc to the ignore list	20 years ago
unknown	a68a9cb693	Re-apply missing changeset, orignally pushed by elliot Add define YASSL_PREFIX when compiling yassl Import patch from yaSSL - avoid allocating memory for each call to 'EVP_md5' and 'EVP_des_ede3_cbc' which were not released until server was stopped - Those functions are used from the SQL function 'des_encrypt' and 'des_decrypt'. Add new define YASSL_PREFIX beforee including ssl.h to activate inclusion of prefix_.h files Bug#20022 mysql-test-run can't be run with secure connections turned on for all testcases - Part 1, fixes rpl- and federated-tests where connection is made to 127.0.0.1 - Include prefix files that renames all public functions in yaSSLs OpenSSL API to ya<function_name>. They will otherwise conflict with OpenSSL functions if loaded by an application that uses OpenSSL as well as libmysqlclient with yaSSL support. Bug#18235: assertion/crash when windows mysqld is ended with ctrl-c Two threads both try a shutdown sequence which creates a race to the de-init/free of certain resources. This exists in similar form in the client as 17926: "mysql.exe crashes when ctrl-c is pressed in windows." Update after merge to 5.0 BUG#18669: Session COM_STATISTICS breaks mysqladmin status. Changed COM_STATISTICS to display the global status, instead of thead status, for slow queries and table opens. - In function 'handle_grant_struct' when searching the memory structures for an entry to modify, convert all entries here host.hostname is NULL to "" and compare that with the host passed in argument "user_from". - A user created with hostname "" is stored in "mysql.user" table as host="" but when loaded into memory it'll be stored as host.hostname NULL. Specifiying "" as hostname means that "any host" can connect. Thus is's correct to turn on allow_all_hosts when such a user is found. - Review and fix other places where host.hostname may be NULL. BUG#19394 OPT_INNODB_THREAD_CONCURRENCY duplicated Removed duplication (not a user-visible change) client/Makefile.am: Remove $yassl_includes client/mysqltest.c: Turn on ssl_verify_server_cert only if host is "localhost" extra/yassl/include/openssl/crypto.h: Add prefix file for ssl.h extra/yassl/include/openssl/ssl.h: Add include file "prefix_crypto.h" to rename SSL_ functions to yaSSL_* extra/yassl/include/yassl_int.hpp: Import patch yassl.diff extra/yassl/src/Makefile.am: Add defined YASSL_PREFIX when building yassl/testsuite extra/yassl/src/ssl.cpp: Import patch yassl.diff extra/yassl/src/template_instnt.cpp: Import patch yassl.diff extra/yassl/src/yassl_int.cpp: Import patch yassl.diff extra/yassl/testsuite/Makefile.am: Add defined YASSL_PREFIX when building yassl/testsuite extra/yassl/yassl.vcproj: Add define YASSL_PREFIX when compiling yassl include/violite.h: Add new define YASSL_PREFIX beforee including ssl.h to activate inclusion of prefix_*.h files libmysql/Makefile.am: Remove yassl_includes libmysql_r/Makefile.am: Remove yassl_includes libmysqld/Makefile.am: Remove yassl_includes libmysqld/examples/Makefile.am: Remove yassl_includes mysql-test/r/analyze.result: Add missing drop table mysql-test/r/grant.result: Reorder test result Add test cases for users with hostname "" mysql-test/r/ps.result: Add missing drop table mysql-test/t/analyze.test: Add missing drop table mysql-test/t/grant.test: Add "use test" Add test cases for users with hostname "" - Test create, grant and drop as well as connecting as the user with hostname "". mysql-test/t/ps.test: Add missing drop table server-tools/instance-manager/Makefile.am: Remove yassl_includes sql/Makefile.am: Remove yassl_includes sql/mysqld.cc: We have three potential ways of hitting the iceberg: - unireg_end() has basic de-init - unireg_abort() has extended de-init - main() has a de-init sequence similar to unireg_abort() In the Windows version of the server, Control-C is handled in a different thread from the one main() is in. The main loop is told to end, then unireg_abort() is called. Its de-init and that of main() will then race each other for mutex- and cond-var-destroys, free(), and finally exit(). This patch introduces a special case for Windows that will eliminate the race by ending the signal-handler via unireg_end() instead if SIGINT is signalled. This seems the least intrusive fix that still fixes user-visible behaviour. Two of the startup options for mysqld, innodb_commit_concurrency and innodb_thread_concurrency, were using the same enumeration value. Changed to give innodb_commit_concurrency it's own value. sql/sql_acl.cc: Add check if host is NULL Add check if grant_name->host.hostname is null Convert places where host.hostname is NULL to "" before using it. sql/sql_parse.cc: Calculate and display the global statistics. vio/Makefile.am: Remove yassl_includes extra/yassl/include/openssl/generate_prefix_files.pl: New BitKeeper file ``extra/yassl/include/openssl/generate_prefix_files.pl'' extra/yassl/include/openssl/prefix_crypto.h: New BitKeeper file ``extra/yassl/include/openssl/prefix_crypto.h'' extra/yassl/include/openssl/prefix_ssl.h: New BitKeeper file ``extra/yassl/include/openssl/prefix_ssl.h''	20 years ago
unknown	01d03e7b4b	This changeset is largely a handler cleanup changeset (WL#3281), but includes fixes and cleanups that was found necessary while testing the handler changes Changes that requires code changes in other code of other storage engines. (Note that all changes are very straightforward and one should find all issues by compiling a --debug build and fixing all compiler errors and all asserts in field.cc while running the test suite), - New optional handler function introduced: reset() This is called after every DML statement to make it easy for a handler to statement specific cleanups. (The only case it's not called is if force the file to be closed) - handler::extra(HA_EXTRA_RESET) is removed. Code that was there before should be moved to handler::reset() - table->read_set contains a bitmap over all columns that are needed in the query. read_row() and similar functions only needs to read these columns - table->write_set contains a bitmap over all columns that will be updated in the query. write_row() and update_row() only needs to update these columns. The above bitmaps should now be up to date in all context (including ALTER TABLE, filesort()). The handler is informed of any changes to the bitmap after fix_fields() by calling the virtual function handler::column_bitmaps_signal(). If the handler does caching of these bitmaps (instead of using table->read_set, table->write_set), it should redo the caching in this code. as the signal() may be sent several times, it's probably best to set a variable in the signal and redo the caching on read_row() / write_row() if the variable was set. - Removed the read_set and write_set bitmap objects from the handler class - Removed all column bit handling functions from the handler class. (Now one instead uses the normal bitmap functions in my_bitmap.c instead of handler dedicated bitmap functions) - field->query_id is removed. One should instead instead check table->read_set and table->write_set if a field is used in the query. - handler::extra(HA_EXTRA_RETRIVE_ALL_COLS) and handler::extra(HA_EXTRA_RETRIEVE_PRIMARY_KEY) are removed. One should now instead use table->read_set to check for which columns to retrieve. - If a handler needs to call Field->val() or Field->store() on columns that are not used in the query, one should install a temporary all-columns-used map while doing so. For this, we provide the following functions: my_bitmap_map old_map= dbug_tmp_use_all_columns(table, table->read_set); field->val(); dbug_tmp_restore_column_map(table->read_set, old_map); and similar for the write map: my_bitmap_map old_map= dbug_tmp_use_all_columns(table, table->write_set); field->val(); dbug_tmp_restore_column_map(table->write_set, old_map); If this is not done, you will sooner or later hit a DBUG_ASSERT in the field store() / val() functions. (For not DBUG binaries, the dbug_tmp_restore_column_map() and dbug_tmp_restore_column_map() are inline dummy functions and should be optimized away be the compiler). - If one needs to temporary set the column map for all binaries (and not just to avoid the DBUG_ASSERT() in the Field::store() / Field::val() methods) one should use the functions tmp_use_all_columns() and tmp_restore_column_map() instead of the above dbug_ variants. - All 'status' fields in the handler base class (like records, data_file_length etc) are now stored in a 'stats' struct. This makes it easier to know what status variables are provided by the base handler. This requires some trivial variable names in the extra() function. - New virtual function handler::records(). This is called to optimize COUNT() if (handler::table_flags() & HA_HAS_RECORDS()) is true. (stats.records is not supposed to be an exact value. It's only has to be 'reasonable enough' for the optimizer to be able to choose a good optimization path). - Non virtual handler::init() function added for caching of virtual constants from engine. - Removed has_transactions() virtual method. Now one should instead return HA_NO_TRANSACTIONS in table_flags() if the table handler DOES NOT support transactions. - The 'xxxx_create_handler()' function now has a MEM_ROOT_root argument that is to be used with 'new handler_name()' to allocate the handler in the right area. The xxxx_create_handler() function is also responsible for any initialization of the object before returning. For example, one should change: static handler myisam_create_handler(TABLE_SHARE table) { return new ha_myisam(table); } -> static handler myisam_create_handler(TABLE_SHARE table, MEM_ROOT mem_root) { return new (mem_root) ha_myisam(table); } - New optional virtual function: use_hidden_primary_key(). This is called in case of an update/delete when (table_flags() and HA_PRIMARY_KEY_REQUIRED_FOR_DELETE) is defined but we don't have a primary key. This allows the handler to take precisions in remembering any hidden primary key to able to update/delete any found row. The default handler marks all columns to be read. - handler::table_flags() now returns a ulonglong (to allow for more flags). - New/changed table_flags() - HA_HAS_RECORDS Set if ::records() is supported - HA_NO_TRANSACTIONS Set if engine doesn't support transactions - HA_PRIMARY_KEY_REQUIRED_FOR_DELETE Set if we should mark all primary key columns for read when reading rows as part of a DELETE statement. If there is no primary key, all columns are marked for read. - HA_PARTIAL_COLUMN_READ Set if engine will not read all columns in some cases (based on table->read_set) - HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS Renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION. - HA_DUPP_POS Renamed to HA_DUPLICATE_POS - HA_REQUIRES_KEY_COLUMNS_FOR_DELETE Set this if we should mark ALL key columns for read when when reading rows as part of a DELETE statement. In case of an update we will mark all keys for read for which key part changed value. - HA_STATS_RECORDS_IS_EXACT Set this if stats.records is exact. (This saves us some extra records() calls when optimizing COUNT(*)) - Removed table_flags() - HA_NOT_EXACT_COUNT Now one should instead use HA_HAS_RECORDS if handler::records() gives an exact count() and HA_STATS_RECORDS_IS_EXACT if stats.records is exact. - HA_READ_RND_SAME Removed (no one supported this one) - Removed not needed functions ha_retrieve_all_cols() and ha_retrieve_all_pk() - Renamed handler::dupp_pos to handler::dup_pos - Removed not used variable handler::sortkey Upper level handler changes: - ha_reset() now does some overall checks and calls ::reset() - ha_table_flags() added. This is a cached version of table_flags(). The cache is updated on engine creation time and updated on open. MySQL level changes (not obvious from the above): - DBUG_ASSERT() added to check that column usage matches what is set in the column usage bit maps. (This found a LOT of bugs in current column marking code). - In 5.1 before, all used columns was marked in read_set and only updated columns was marked in write_set. Now we only mark columns for which we need a value in read_set. - Column bitmaps are created in open_binary_frm() and open_table_from_share(). (Before this was in table.cc) - handler::table_flags() calls are replaced with handler::ha_table_flags() - For calling field->val() you must have the corresponding bit set in table->read_set. For calling field->store() you must have the corresponding bit set in table->write_set. (There are asserts in all store()/val() functions to catch wrong usage) - thd->set_query_id is renamed to thd->mark_used_columns and instead of setting this to an integer value, this has now the values: MARK_COLUMNS_NONE, MARK_COLUMNS_READ, MARK_COLUMNS_WRITE Changed also all variables named 'set_query_id' to mark_used_columns. - In filesort() we now inform the handler of exactly which columns are needed doing the sort and choosing the rows. - The TABLE_SHARE object has a 'all_set' column bitmap one can use when one needs a column bitmap with all columns set. (This is used for table->use_all_columns() and other places) - The TABLE object has 3 column bitmaps: - def_read_set Default bitmap for columns to be read - def_write_set Default bitmap for columns to be written - tmp_set Can be used as a temporary bitmap when needed. The table object has also two pointer to bitmaps read_set and write_set that the handler should use to find out which columns are used in which way. - count() optimization now calls handler::records() instead of using handler->stats.records (if (table_flags() & HA_HAS_RECORDS) is true). - Added extra argument to Item::walk() to indicate if we should also traverse sub queries. - Added TABLE parameter to cp_buffer_from_ref() - Don't close tables created with CREATE ... SELECT but keep them in the table cache. (Faster usage of newly created tables). New interfaces: - table->clear_column_bitmaps() to initialize the bitmaps for tables at start of new statements. - table->column_bitmaps_set() to set up new column bitmaps and signal the handler about this. - table->column_bitmaps_set_no_signal() for some few cases where we need to setup new column bitmaps but don't signal the handler (as the handler has already been signaled about these before). Used for the momement only in opt_range.cc when doing ROR scans. - table->use_all_columns() to install a bitmap where all columns are marked as use in the read and the write set. - table->default_column_bitmaps() to install the normal read and write column bitmaps, but not signaling the handler about this. This is mainly used when creating TABLE instances. - table->mark_columns_needed_for_delete(), table->mark_columns_needed_for_delete() and table->mark_columns_needed_for_insert() to allow us to put additional columns in column usage maps if handler so requires. (The handler indicates what it neads in handler->table_flags()) - table->prepare_for_position() to allow us to tell handler that it needs to read primary key parts to be able to store them in future table->position() calls. (This replaces the table->file->ha_retrieve_all_pk function) - table->mark_auto_increment_column() to tell handler are going to update columns part of any auto_increment key. - table->mark_columns_used_by_index() to mark all columns that is part of an index. It will also send extra(HA_EXTRA_KEYREAD) to handler to allow it to quickly know that it only needs to read colums that are part of the key. (The handler can also use the column map for detecting this, but simpler/faster handler can just monitor the extra() call). - table->mark_columns_used_by_index_no_reset() to in addition to other columns, also mark all columns that is used by the given key. - table->restore_column_maps_after_mark_index() to restore to default column maps after a call to table->mark_columns_used_by_index(). - New item function register_field_in_read_map(), for marking used columns in table->read_map. Used by filesort() to mark all used columns - Maintain in TABLE->merge_keys set of all keys that are used in query. (Simplices some optimization loops) - Maintain Field->part_of_key_not_clustered which is like Field->part_of_key but the field in the clustered key is not assumed to be part of all index. (used in opt_range.cc for faster loops) - dbug_tmp_use_all_columns(), dbug_tmp_restore_column_map() tmp_use_all_columns() and tmp_restore_column_map() functions to temporally mark all columns as usable. The 'dbug_' version is primarily intended inside a handler when it wants to just call Field:store() & Field::val() functions, but don't need the column maps set for any other usage. (ie:: bitmap_is_set() is never called) - We can't use compare_records() to skip updates for handlers that returns a partial column set and the read_set doesn't cover all columns in the write set. The reason for this is that if we have a column marked only for write we can't in the MySQL level know if the value changed or not. The reason this worked before was that MySQL marked all to be written columns as also to be read. The new 'optimal' bitmaps exposed this 'hidden bug'. - open_table_from_share() does not anymore setup temporary MEM_ROOT object as a thread specific variable for the handler. Instead we send the to-be-used MEMROOT to get_new_handler(). (Simpler, faster code) Bugs fixed: - Column marking was not done correctly in a lot of cases. (ALTER TABLE, when using triggers, auto_increment fields etc) (Could potentially result in wrong values inserted in table handlers relying on that the old column maps or field->set_query_id was correct) Especially when it comes to triggers, there may be cases where the old code would cause lost/wrong values for NDB and/or InnoDB tables. - Split thd->options flag OPTION_STATUS_NO_TRANS_UPDATE to two flags: OPTION_STATUS_NO_TRANS_UPDATE and OPTION_KEEP_LOG. This allowed me to remove some wrong warnings about: "Some non-transactional changed tables couldn't be rolled back" - Fixed handling of INSERT .. SELECT and CREATE ... SELECT that wrongly reset (thd->options & OPTION_STATUS_NO_TRANS_UPDATE) which caused us to loose some warnings about "Some non-transactional changed tables couldn't be rolled back") - Fixed use of uninitialized memory in ha_ndbcluster.cc::delete_table() which could cause delete_table to report random failures. - Fixed core dumps for some tests when running with --debug - Added missing FN_LIBCHAR in mysql_rm_tmp_tables() (This has probably caused us to not properly remove temporary files after crash) - slow_logs was not properly initialized, which could maybe cause extra/lost entries in slow log. - If we get an duplicate row on insert, change column map to read and write all columns while retrying the operation. This is required by the definition of REPLACE and also ensures that fields that are only part of UPDATE are properly handled. This fixed a bug in NDB and REPLACE where REPLACE wrongly copied some column values from the replaced row. - For table handler that doesn't support NULL in keys, we would give an error when creating a primary key with NULL fields, even after the fields has been automaticly converted to NOT NULL. - Creating a primary key on a SPATIAL key, would fail if field was not declared as NOT NULL. Cleanups: - Removed not used condition argument to setup_tables - Removed not needed item function reset_query_id_processor(). - Field->add_index is removed. Now this is instead maintained in (field->flags & FIELD_IN_ADD_INDEX) - Field->fieldnr is removed (use field->field_index instead) - New argument to filesort() to indicate that it should return a set of row pointers (not used columns). This allowed me to remove some references to sql_command in filesort and should also enable us to return column results in some cases where we couldn't before. - Changed column bitmap handling in opt_range.cc to be aligned with TABLE bitmap, which allowed me to use bitmap functions instead of looping over all fields to create some needed bitmaps. (Faster and smaller code) - Broke up found too long lines - Moved some variable declaration at start of function for better code readability. - Removed some not used arguments from functions. (setup_fields(), mysql_prepare_insert_check_table()) - setup_fields() now takes an enum instead of an int for marking columns usage. - For internal temporary tables, use handler::write_row(), handler::delete_row() and handler::update_row() instead of handler::ha_xxxx() for faster execution. - Changed some constants to enum's and define's. - Using separate column read and write sets allows for easier checking of timestamp field was set by statement. - Remove calls to free_io_cache() as this is now done automaticly in ha_reset() - Don't build table->normalized_path as this is now identical to table->path (after bar's fixes to convert filenames) - Fixed some missed DBUG_PRINT(.."%lx") to use "0x%lx" to make it easier to do comparision with the 'convert-dbug-for-diff' tool. Things left to do in 5.1: - We wrongly log failed CREATE TABLE ... SELECT in some cases when using row based logging (as shown by testcase binlog_row_mix_innodb_myisam.result) Mats has promised to look into this. - Test that my fix for CREATE TABLE ... SELECT is indeed correct. (I added several test cases for this, but in this case it's better that someone else also tests this throughly). Lars has promosed to do this. BitKeeper/etc/ignore: added mysys/test_bitmap include/base64.h: Removed my_global.h, as this must be included first in any program include/heap.h: Added heap_reset() (Required by new handler interface) include/my_base.h: Removed HA_EXTRA_RESET. MySQL will now call ::reset() instead of ::extra(HA_EXTRA_RESET). HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIVE_PRIMARY key are deleted as the column bitmaps makes these unnecessary include/my_bitmap.h: Remove my_pthread.h (should be included at upper level) Introduced my_bitmap_map typedef to make it the bitmap handling more like a black box Added bitmap_is_overlapping(), bitmap_test_and_clear(), bitmap_copy() and bitmap_cmp() Made bitmap_set_bit(), bitmap_flip_bit(), bitmap_clear_bit() return void include/myisam.h: Added mi_reset() (Required by new handler interface) include/myisammrg.h: Added myrg_reset() (Required by new handler interface) include/mysql_com.h: Added flag FIELD_IN_ADD_INDEX to be able to remove Field->add_index mysql-test/extra/binlog_tests/mix_innodb_myisam_binlog.test: Added testing of CREATE ... SELECT in a mixed environment (This found some bugs that Mats is going to fix shortly) mysql-test/install_test_db.sh: Simplify ldata usage Added --tmpdir=. option to mysqld bootstrap (Removed some warnings when TMPDIR was wrongly set) mysql-test/mysql-test-run.pl: Added --tmpdir=. to bootstrap mysql-test/mysql-test-run.sh: Use copy instead of INSTALL_DB for master and slave databases. (Speeds up startup time a lot!) Remove snapshot directories at startup (removes some strange warnings) mysql-test/r/binlog_row_mix_innodb_myisam.result: Added testing of CREATE ... SELECT in a mixed environment (This found some bugs that Mats is going to fix shortly) mysql-test/r/binlog_stm_mix_innodb_myisam.result: Added testing of CREATE ... SELECT in a mixed environment mysql-test/r/create.result: Some extra tests of warnings and number of tables opened by CREATE ... SELECT mysql-test/r/federated.result: Drop some left over tables Added testing of multiple table update and multiple table delete (with and without keys) mysql-test/r/func_gconcat.result: Enable some disabled tests (converted them slightly to be predictable) mysql-test/r/func_time.result: Added drop of test function mysql-test/r/innodb_mysql.result: Added tests for CREATE ... SELECT mysql-test/r/insert.result: More tests Added testing of duplicate columns in insert mysql-test/r/loaddata.result: Added testing LOAD DATA ... SET ... mysql-test/r/multi_update.result: Test multi updates and deletes using primary key and without mysql-test/r/ndb_index_unique.result: Better error message mysql-test/r/ndb_replace.result: New correct result after fixing REPLACE handling with NDB mysql-test/r/rpl_ddl.result: Now we don't get these (wrong) warnings anymore mysql-test/r/view_grant.result: Drop used views mysql-test/t/create.test: Some extra tests of warnings and number of tables opened by CREATE ... SELECT mysql-test/t/federated.test: Drop some left over tables Added testing of multiple table update and multiple table delete (with and without keys) mysql-test/t/func_gconcat.test: Enable some disabled tests (converted them slightly to be predictable) mysql-test/t/func_time.test: Added drop of test function mysql-test/t/innodb_mysql.test: Added tests for CREATE ... SELECT mysql-test/t/insert.test: More tests Added testing of duplicate columns in insert mysql-test/t/loaddata.test: Added testing LOAD DATA ... SET ... mysql-test/t/multi_update.test: Test multi updates and deletes using primary key and without mysql-test/t/view_grant.test: Drop used views mysql-test/valgrind.supp: Added supression of not needed warnings when printing stack trace mysys/base64.c: Include my_global.h first mysys/my_bitmap.c: Added bitmap_is_overlapping(), bitmap_test_and_clear() and bitmap_copy() Changed logic of bitmap handling to be a bit more efficent (Did this together with Mikael Ronström) Now the 'extra, not used bits' in the bitmap are assumed to have a 'random value' and the bitmap functions are free to change them whenever needed. Changed how mutex is allocated to make 'bitmap_free()' function simpler. mysys/thr_lock.c: Added 0x before thread pointers (for easier comparison of DBUG traces) sql/event.cc: Ensure 'use_all_columns()' is used for event tables Don't print warning that event table is damaged if it doesn't exists. sql/field.cc: Added ASSERT_COLUMN_MARKED_FOR_WRITE in all store() methods and ASSERT_COLUMN_MARKED_FOR_READ in all val() methods to catch wrong setting if table->read_set and table->write_set (Rest of changes are only indentation cleanups) sql/field.h: Removed Field->query_id (replaced by table->read_set and table->write_set) Removed Field->fieldnr (use Field->field_index instead) Removed Field->add_index (Use Field->flags instead) Add Field->part_of_key_not_clustered (for usage in opt_range.cc) sql/filesort.cc: Added paramater sort_postion to filesort() to force sorting by position instead of storing all fields in the result set. This allowed me to remove checking of sql_command. Create a temporary column bitmap for fields that are used by the sorting process. Use column bitmaps instead of query_id sql/ha_berkeley.cc: Update to 'newer' table handler interface sql/ha_berkeley.h: Update to 'newer' table handler interface sql/ha_federated.cc: Update to 'newer' table handler interface Only read columns that are needed from remote server. In case of eq ranges, don't generate two conditions in the WHERE clause (this can still be optimized, but would require a bigger code change) Use 'simpler to use' XXXX_LEN' macros A bit simpler logic in ::write_row() when creating statements. In update, only include test of fields actually read. (This greatly simplifies the queries sent by the federated engine) Similar changes done for delete_row() sql/ha_federated.h: Update to 'newer' table handler interface Changed XXX_LEN macros to use sizeof(...)-1, to simplify usage in ha_federated.cc Added HA_PRIMARY_KEY_REQUIRED_FOR_DELETE to tell MySQL to read all primary key columns in case of DELETE sql/ha_heap.cc: Update to 'newer' table handler interface sql/ha_heap.h: Update to 'newer' table handler interface sql/ha_innodb.cc: Update to 'newer' table handler interface - Update innobase_create_handler() to new interface - Removed HA_NOT_EXACT_COUNT (not needed) - Renamed HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION. - Prefixed base status variables with 'stats' - Use table column bitmaps instead of ha_get_bit_in_read_set() - Added ::reset(), with code from ::extra(HA_EXTRA_RESET) - Removed HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIEVE_PRIMARY_KEY as the table->read_set and table->write_set bitmaps now are accurate sql/ha_innodb.h: Update to 'newer' table handler interface - table_flags are now ulonglong - Added reset() method - Removed not needed ha_retrieve_all_cols() and ha_retrieve_all_pk() columns. - Made build_template() a class function to be able to easier access class variables sql/ha_myisam.cc: Update to 'newer' table handler interface sql/ha_myisam.h: Update to 'newer' table handler interface sql/ha_myisammrg.cc: Update to 'newer' table handler interface sql/ha_myisammrg.h: Update to 'newer' table handler interface sql/ha_ndbcluster.cc: Update to 'newer' table handler interface Fixed use_blob_value() to be accurate In ::complemented_read() we have to check both the read and write bitmap as the old code did mark all changed columns also in the read map Correct dumping of field data with DBUG_DUMP Prefix addresses in DBUG_PRINT with 0x Fixed usage of not initialized memory Update to use field->flags & FIELD_IN_ADD_INDEX instead of field->add_index. sql/ha_ndbcluster.h: Update to 'newer' table handler interface sql/ha_ndbcluster_binlog.cc: Mark usage of all columns in ndbcluster binlog tables false -> FALSE, true -> TRUE Use table->s->all_set instead of creating a temporary bitmap. sql/ha_partition.cc: Update to 'newer' table handler interface Added memroot to initialise_partitions() and related functions to get faster memory allocation. partition_create_handler() is now responsible for initialisation of the partition object Some trivial optimizations and indentation fixes Ensure that table_flags() are up to date Removed documentation for removed HA_EXTRA flags Fixed 'strange' usage of m_file[i] in new_handlers_from_part_info()that worked in current code 'by chance' sql/ha_partition.h: Update to 'newer' table handler interface sql/handler.cc: create_xxx handler now takes MEMROOT as an argument to simplify memory allocation. Much simpler get_new_handler() (Initialization of the object is now handled by the create method for the engine) Moved all allocation of bitmap handling to the TABLE object (in table.cc) Added column_bitmaps_signal() to signal column usage changes. Changed binlog_log_row() to use the exiusting all_set bitmap in the table object. Added ha_reset() function to test that the file object is ok at end of statement and call handler::reset() Added use_hidden_primary_key() to signal handler that we we are going to read and update + delete the row and the handler should thus remember the position for the row sql/handler.h: Added HA_NO_TRANSACTIONS, HA_PARTIAL_COLUMN_READ, HA_REQUIRES_KEY_COLUMNS_FOR_DELETE,HA_PRIMARY_KEY_REQUIRED_FOR_DELETE and HA_HAS_RECORDS Removed HA_NOT_EXACT_COUNT, HA_READ_RND_SAME HA_DUPP_POS -> HA_DUPLICATE_POS HA_NOT_EXACT_COUNT replaced by HA_STATS_RECORDS_IS_EXACT, HA_HAS_RECORDS and records() HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION Added future row type 'ROW_TYPE_PAGES' Added MEM_ROOT to handlerton 'create' function Added ha_statistics, a structure for all status variable in the base handler class. Moved all status variables in the handler class into a stats structs to improve readability. ha_table_flags() is now a cached (not virtual) version of table_flags() reset() doesn't anymore call extra(HA_EXTRA_RESET) but is a function of it's own. Renamed dupp_ref to dup_ref Renamed not used handler::sortkey Moved read_set and write_set to TABLE structure handler::init() function added for cacheing of virtual constants from engine. sql/item.cc: Added register_field_in_read_map() for marking used columns in expression. This is used by filesort() for creating an optimal column bitmap while retrieving columns for sorting. Initalize value.cs_info.character_set_client to fix core dump bug with --debug set_query_id -> mark_used_columns Mark used columns in read_set OR write_set. sql/item.h: Removed reset_query_id_processor() as it's not needed anymore. Added register_field_in_read_map() Added extra argument to Item::walk() to indicate if we should also traverse sub queries. sql/item_cmpfunc.cc: Temporary mark used columns to be read/writable Update Item::walk to new interface sql/item_cmpfunc.h: Added extra argument to Item::walk() to indicate if we should also traverse sub queries. sql/item_func.cc: Update Item::walk() to new interface table_flags() -> ha_table_flags() sql/item_func.h: Update Item::walk() to new interface sql/item_row.cc: Update Item::walk() to new interface sql/item_row.h: Update Item::walk() to new interface sql/item_strfunc.h: Update Item::walk() to new interface sql/item_subselect.cc: Added Item_subselect::walk() (It was a bug it was missing before. Not sure what kind of bugs this could have caused) sql/item_subselect.h: Update Item::walk() to new interface sql/item_sum.cc: Update Item::walk() to new interface Updates for new handler interace sql/item_sum.h: Update Item::walk() to new interface sql/key.cc: Updates for new handler interace sql/log.cc: Mark all columns used for log tables Split options flag Ensured that second argument to trans_register_ha is a bool sql/log_event.cc: Fixed comments to be withing 79 characters Use OPTION_KEEP_LOG instead of OPTION_STATUS_NO_TRANS_UPDATE to remove wrong warnings Updates for new handler interface Use 0x%lx instead of %p (portability problem) sql/mysql_priv.h: Added OPTION_KEEP_LOG to indicate that we should replicate the binlog even on rollback Removed not used 'conds' argument to setup_tables sql/mysqld.cc: Indentation fixes and removed old comment sql/opt_range.cc: Update to new handler and bitmap interface. Fixed calls to cp_buffer_from_ref() and walk() (new argument). Create new temporary bitmaps for ror scans. (Needed because of handler changes and to get more accurate column bitmaps than before) Remove not needed file->ha_reset() call before file->close(). Some trivial optimization and indentation fixes. Use Field->part_of_key_not_clustered() to check if field is part of a key, instead of looping over all key parts. Added flag 'in_ror_merged_scan' to allow ::get_next() to know that we need a special column bitmap to only fetch pointer to record. This is needed because ror scan uses the same TABLE object but different file objects, which creates problem for the column bitmap handling. (This is a temporary solution. A better one would be to allocate an own TABLE object for ROR scans) Optimized bitmap handling in ror scans: - Start bitmap at position 0, not 1 - Use same bitmap size as in TABLE - Use table->read_set and table->write_set to create column bitmaps instead of looping over all fields in table sql/opt_range.h: Added 'in_ror_merged_scan' to indicate if we are doing a ROR scan Added temporary column bitmaps used in ROR scans sql/opt_sum.cc: Added get_ext_record_count() which is used in COUNT() optimization if handler has HA_HAS_RECORDS Note that we don't call this if handler has HA_STATS_RECORDS_IS_EXACT set. sql/protocol.cc: We need to mark columns as readable in ::store() as we sometimes return default value for fields to the user sql/records.cc: Updates for new handler interface sql/set_var.cc: Handle splitting OPTION_STATUS_NO_TRANS_UPDATE to two flags sql/share/errmsg.txt: Fixed wrong sql/sp.cc: Mark that we are using all columns for the proc table Update call to setup_tables() to use new prototype sql/sp_head.cc: Removed QQ comment sql/spatial.cc: Removed wrong QQ comment sql/sql_acl.cc: Mark that we need all columns for acl tables Supply memroot to some 'new' calls. Indentation fixes sql/sql_base.cc: set_query_id removed Ensure we call ha_reset() at end of each statement Mark read columns in read_set and changed columns in write_set (Before all columns was marked in read set) Fixed marking of some columns that was not proplerly marked before Maintain in TABLE->merge_keys set of all keys that are used in some way Removed not used 'conds' argument from setup_tables() Remove not used setting of 'dupp_field' in insert_fields() Added missing FN_LIBCHAR in mysql_rm_tmp_tables() (This has probably caused us to not properly remove temporary files after crash) sql/sql_bitmap.h: Added is_overlapping() sql/sql_class.cc: Slow_logs was not properly initialized, which could maybe cause extra/lost entries in slow log. set_query_id -> mark_used_columns Simpler variable usage in pack_row() (cleanup) Moved some variable declartion at start of function for better code readability sql/sql_class.h: Added enum_mark_columns Updated comments Renamed dupp_field -> dup_field Added virtual function 'can_rollback_data()' to select_insert() to be used in CREATE ... SELECT to optimize use of OPTION_STATUS_NO_TRANS_UPDATE. (This fixes a bug in CREATE ... SELECT where we did give wrong warnings when using non transacational tables) sql/sql_delete.cc: Updates to new handler interface Call table->mark_columns_needed_for_delete() to allow us to put additional columns in column usage maps if handler so requires. Call table->prepare_for_position() to tell handler that we are going to call ha_position(). Removed call to free_io_cache(). (io_cache is now removed in ha_reset()). Fixed calls to setup_tables() sql/sql_do.cc: Update call to setup_fields() sql/sql_handler.cc: Tell handler tables to always read all columns. Use temporary column map when storing value in field for later index usage sql/sql_help.cc: Makr all used fields to be read Update call to setup_fields() sql/sql_insert.cc: Tell handler we are going to update the auto_increment column dupp_field -> dup_field Set column usage bits for timestamp field. Call table->mark_columns_needed_for_insert() and table->mark_auto_increment_column() Removed not used argument from mysql_prepare_insert_check_table(). If we get an duplicate row on insert, change column map to read and write all columns while retrying the operatation. This is required by the definition of REPLACE and also ensures that fields that are only part of UPDATE are properly handled. This fixed a bug in NDB and REPLACE where REPLACE wrongly copied some column values from the replaced row. Setup new bitmaps for delayed insert rows Remove reseting of next_number_fields as it will be reset on next call to handler_insert() Fixed usage of thd->options and OPTION_STATUS_NO_TRANS_UPDATE. The issue was that one should not to reset this flag as it may be set by a previous statement. The way it was now used caused us to loose some warnings and get other wrong warnings when using non transactional tables mixed with transactional. I fixed it by introducing 'select_insert::can_rollback_data' to inform send_error() that the given statement can be rolled back (which in case of CREATE TABLE can always be done) Don't close tables created with CREATE ... SELECT but keep them in the table cache. Moved out MY_HOOKS from inside function (better readability) sql/sql_load.cc: Update to use new handler and column marking interface Update using setup_tables() sql/sql_olap.cc: Update calls to setup_tables Use enums instead of constants to setup_fields() sql/sql_parse.cc: Handle OPTION_KEEP_LOG: - Set it on CREATE TEMPORARY TABLE / DROP TABLE - Reset it when OPTION_STATUS_NO_TRANS_UPDATE is reset - Don't set it for CREATE ... SELECT (this is handled in select_create class) Remove reseting of OPTION_STATUS_NO_TRANS_UPDATE in begin_trans() as this should already be reset. If in autocommit mode, reset OPTION_KEEP_LOG and OPTION_STATUS_NO_TRANS_UPDATE to not give warnings in future commands sql/sql_partition.cc: Update walk() usage Trivial indentation fixes sql/sql_plugin.cc: Mark all columns as used for plugins sql/sql_prepare.cc: Added assert to find out hidden bugs in character_set_client (got an error in debug binary when this not set correctly) Updates for new handler interface Update calls to setup_fields() sql/sql_repl.cc: Indentation fixes sql/sql_select.cc: Update call to setup_tables() and setup_fields() Remove some old disabled code Update to new hadler interface Indentation cleanups Added column bitmaps for temporary tables. Remove updating of the removed slots in the Field class Added TABLE argument to cp_buffer_from_ref() (To be able to install temporary column maps) For internal temporary tables, use handler::write_row(), handler::delete_row() and handler::update_row() instead of handler::ha_xxxx() for faster execution. sql/sql_select.h: Indentaition fixes. Install temporary column usage maps when needed Added TABLE element to cp_buffer_from_ref() sql/sql_show.cc: Update to new handler interface Mark all columns used for internal tables. Style fixes. Added support for 'future' ROW_TYPE_PAGES. Don't allocate TMP_TABLE_PARAM with calloc. The 'init()' function will initialize the structure properly. sql/sql_table.cc: Update to new handler interface Simple my_snprintf -> strmake() Changed some constants to defines Don't test for NULL in primary key (as we a couple of line above force the PRIMARY KEY to be NOT NULL) Change field->add_index to use field->flags & FIELD_IN_ADD_INDEX Mark all columns as used for ALTER TABLE Style fixes Update call to filesort() sql/sql_trigger.h: Added friend functions to be able to test if triggers exists for table we are going to insert/update or delete in. sql/sql_udf.cc: Mark all columns as used for udf system table. sql/sql_union.cc: Update call to walk() Update to new handler interface sql/sql_update.cc: Remove query_id argument from compare_record() Use column bitmaps instead of query_id. We can't use compare_records() to skip updates for handlers that returns a partial column set and the read_set doesn't cover all columns in the write set, because compare_record() can't in this case know if a not read column changed value. Update call to setup_fields() Using separate column read and write sets allows for easier checking of timestamp field was set by statement. Removed call to free_io_cache() as this is now done in ha_reset() Call table->mark_columns_needed_for_update() and table->prepare_for_position() Style fixes sql/sql_view.cc: Style fixes sql/table.cc: Remove implicitely include 'errno.h' Remove code for building normalized path, as this is now identical to 'path' Remove field->fieldnr Added update of field->part_of_key_not_clustered() Create column bitmaps in TABLE and TABLE_SHARE Don't setup a temporary MEM_ROOT object as a thread specific variable for the handler. Instead we send the to-be-used MEMROOT to get_new_handler() Update to new handler interface Update call to walk() Added new functions: - st_table::clear_column_bitmaps() - st_table::prepare_for_position() - st_table::mark_columns_used_by_index() - st_table::restore_column_maps_after_mark_index() - st_table::mark_columns_used_by_index_no_reset() - st_table::mark_auto_increment_column() - st_table::mark_columns_needed_for_delete() - st_table::mark_columns_needed_for_update() - st_table::mark_columns_needed_for_insert() sql/table.h: Moved column usage bitmaps from handler to TABLE Added to TABLE_SHARE all_set and column_bitmap_size Added to TABLE merge_keys, bitmap_init_values, def_read_set, def_write_set, tmp_set, read_set and write_set. Declared all new table column bitmap functions Added TABLE functions column_bitmaps_set(), column_bitmaps_set_no_signal(), use_all_columns() and default_column_bitmaps() Added functions: tmp_use_all_columns() and tmp_restore_column_map() to temporarly switch column bitmaps Added functions: dbug_tmp_use_all_columns() and dbug_tmp_restore_column_map() to temporarly switch column bitmaps to avoid asserts in Field::store() and Field::val(). sql/tztime.cc: Mark all columns as used for timezone tables storage/archive/ha_archive.cc: Update to new handler interface storage/archive/ha_archive.h: Update to new handler interface storage/blackhole/ha_blackhole.cc: Update to new handler interface storage/blackhole/ha_blackhole.h: Update to new handler interface removed not needed flag HA_DUPP_POS storage/csv/ha_tina.cc: Update to new handler interface storage/csv/ha_tina.h: Update to new handler interface storage/example/ha_example.cc: Update to new handler interface storage/example/ha_example.h: Update to new handler interface storage/heap/hp_extra.c: Added heap_reset() (Required by new handler interface) storage/heap/hp_test2.c: Use heap_reset() storage/myisam/ft_boolean_search.c: Fixed compiler warning storage/myisam/mi_extra.c: Added mi_reset() (Required by new handler interface) storage/myisam/mi_search.c: Fixed DBUG_PRINT messages to use 0x%lx instead of %lx storage/myisam/mi_test2.c: Use mi_reset() storage/myisam/myisampack.c: Use mi_reset() storage/myisammrg/myrg_extra.c: Added myrg_reset() (Required by new handler interface) unittest/mysys/base64.t.c: Include my_global.h Don't include implictely include file 'stdlib.h'	20 years ago
unknown	eadcf20081	bug #16017 (memory leaks in embedded server) There actually was 3 different problems - hash_user_connections wasn't cleaned one strdupped database name wasn't freed and stmt->mem_root wasn't cleaned as it was replased with mysql->field_alloc for result For the last one - i made the library using stmt's fields to store result if it's the case. include/mysql.h: statement pointer added to the advanced_command to be checked in embedded server include/sql_common.h: stmt added to the cli_advanced_command interface libmysql/libmysql.c: stmt pointer now sent to advanced_command libmysqld/embedded_priv.h: it's enough to send database name to check_embedded_connection libmysqld/lib_sql.cc: Now we store result directly in the MYSQL_STMT structure to avoid extra copying libmysqld/libmysqld.c: it's enough to only send database pointer to check_embedded_connection sql-common/client.c: stmt fake attribute added to cli_advanced_command sql/sql_parse.cc: hash_user_connections isn't used if no access checks compiled	20 years ago
unknown	bdda011675	Fix for bug #17394 - Events namespace is wrong mysql-test/lib/init_db.sql: remove definer from PK mysql-test/r/events.result: update results mysql-test/r/system_mysql_db.result: update results mysql-test/t/events.test: remove I_S.EVENTS test and move it to events_grant.test scripts/mysql_fix_privilege_tables.sql: change table definition sql/event.cc: make events non-user specific (namespace change) sql/event.h: make events non-user specific (namespace change) sql/event_priv.h: make events non-user specific (namespace change) sql/event_scheduler.cc: make events non-user specific (namespace change) sql/event_timed.cc: make events non-user specific (namespace change) sql/sql_parse.cc: make events non-user specific (namespace change) sql/sql_show.cc: SHOW EVENTS is available to everyone who has EVENT on specific schema. No additional privileges are needed to see others' events. - user A has events in db1 and db2 - user B has events in db1 and db3 A will see all his events from db1 and db2 as well as B's events from db1 but not from db3. B will see her events from db1 and db3. In addition B will see only A's events from db1 but not db2.	20 years ago
unknown	2264b64473	Fixed bug#19225: unchecked error results in server crash In multi-table delete a table for delete can't be used for selecting in subselects. Appropriate error was raised but wasn't checked which leads to a crash at the execution phase. The mysql_execute_command() now checks for errors before executing select for multi-delete. mysql-test/t/multi_update.test: Added test case for bug#19225: unchecked error results in server crash mysql-test/r/multi_update.result: Added test case for bug#19225: unchecked error results in server crash sql/sql_parse.cc: Fixed bug#19225: unchecked error results in server crash The mysql_execute_command() now checks for errors before executing select for multi-delete.	20 years ago
unknown	e2e582d1fb	handlerton cleanup: duplicate fields removed, st_mysql_storage_engine added to support run-time handlerton initialization (no compiler warnings), handler API is now tied to MySQL version, handlerton->plugin mapping added (slot-based), dummy default_hton removed, plugin-type-specific initialization generalized, built-in plugins are now initialized too, --default-storage-engine no longer needs a list of storage engines in handle_options(). mysql-test-run.pl bugfixes include/mysql/plugin.h: added st_mysql_storage_engine made handlerton tied to MySQL version mysql-test/mysql-test-run.pl: bugfixes (umask, --no-defaults) mysql-test/r/ndb_dd_basic.result: update error message mysql-test/t/partition_mgm_err2.test: fix typo sql/ha_berkeley.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_berkeley.h: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_federated.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_heap.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_innodb.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_innodb.h: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_myisam.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_myisammrg.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_ndbcluster.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_ndbcluster.h: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/ha_ndbcluster_binlog.cc: no 'name' in the handlerton anymore sql/ha_partition.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/handler.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, handlerton->plugin mapping sql/handler.h: handlerton cleanup: remove duplicate fields sql/log.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings sql/mysql_priv.h: handler.h needs plugin.h sql/mysqld.cc: Convert --default-storage-engine to a handlerton* when all storage engines are initialized and not in getopt sql/set_var.cc: no name in the handlerton anymore sql/sql_parse.cc: no default_hton anymore sql/sql_partition.cc: no name in the handlerton anymore sql/sql_plugin.cc: generalize plugin type-specific initialization. initialize built-in plugins too sql/sql_plugin.h: generalize plugin type-specific initialization. sql/sql_show.cc: st_mysql_storage_engine structure no name in the handlerton anymore sql/sql_table.cc: no name in the handlerton anymore no default_hton anymore sql/sql_tablespace.cc: no name in the handlerton anymore no default_hton anymore sql/sql_yacc.yy: no default_hton anymore issue "unknown storage engine" warning where it is discovered storage/archive/ha_archive.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings storage/archive/ha_archive.h: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings storage/blackhole/ha_blackhole.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings storage/csv/ha_tina.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings storage/example/ha_example.cc: handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, initialize handlerton run-time to avoid compiler warnings	20 years ago
unknown	d7743c41c6	BUG#18681: View privileges are broken The check for view security was lacking several points : 1. Check with the right set of permissions : for each table ref that participates in a view there were the right credentials to use in it's security_ctx member, but these weren't used for checking the credentials. This makes hard enforcing the SQL SECURITY DEFINER\|INVOKER property consistently. 2. Because of the above the security checking for views was just ruled out in explicit ways in several places. 3. The security was checked only for the columns of the tables that are brought into the query from a view. So if there is no column reference outside of the view definition it was not detecting the lack of access to the tables in the view in SQL SECURITY INVOKER mode. The fix below tries to fix the above 3 points. mysql-test/r/grant.result: removed nondeterminism (unspecified order) in some test output mysql-test/r/view_grant.result: Somewhat extended test case for the bug and similar queries. mysql-test/t/grant.test: removed nondeterminism (unspecified order) in some test output mysql-test/t/view_grant.test: Somewhat extended test case for the bug and similar queries. sql/mysql_priv.h: A wrapper for setup_tables that also checks access to the tables sql/sql_acl.cc: removed artificial security check stop and used the table ref's credentials. sql/sql_base.cc: a wrapper for setup_tables to check access to the tables sql/sql_delete.cc: wrapper called. sql/sql_insert.cc: wrapper called sql/sql_load.cc: wrapper called sql/sql_parse.cc: wrapper called and artificial check stop removed sql/sql_select.cc: wrapper called sql/sql_update.cc: wrapper called sql/table.cc: Mask table access to the view error as well.	20 years ago
unknown	5aa3446217	BUG#18669: Session COM_STATISTICS breaks mysqladmin status. Changed COM_STATISTICS to display the global status, instead of thead status, for slow queries and table opens. sql/sql_parse.cc: Calculate and display the global statistics.	20 years ago
unknown	f4781a7e4c	fix for bug #17619 Scheduler race conditions - Scheduler is either initialized at server start or never. Starting & stopping is now suspending & resuming. - The scheduler has clear OO interface - Now all calls to the scheduler are synchronous - GLOBAL event_scheduler uses thd::sys_var_tmp (see set_var.cc) - External API is encapsulated into class Events - Includes fixes for all comments of Kostja's review of 19.05.2005 Starting to merge into 5.1-release (5.1.10) and push BitKeeper/etc/ignore: Added libmysqld/event_scheduler.cc to the ignore list libmysqld/Makefile.am: executor -> scheduler mysql-test/r/events.result: update result mysql-test/r/events_bugs.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/r/events_microsec.result: update result mysql-test/r/events_scheduling.result: update result mysql-test/r/events_stress.result: update result mysql-test/t/disabled.def: enable these tests mysql-test/t/events.test: optimize the test a bit for speed, save some seconds runtime remove FULL from SHOW EVENTS mostly use I_S.EVENTS mysql-test/t/events_bugs.test: Skip irrelevant for the current design tests - all events are loaded on server startup. Change in mysql.event will be visible on next server start. Don't use numeric error codes. mysql-test/t/events_logs_tests.test: optimize the test a bit for speed mysql-test/t/events_microsec.test: Skip irrelevant for the current design tests - all events are loaded on server startup. Change in mysql.event will be visible on next server start. Don't use numeric error codes. mysql-test/t/events_scheduling.test: broader test mysql-test/t/events_stress.test: Rework the test to the new architecture of suspending/resuming. Use less events, no need for thousands, hundreds is still ok. sql/Makefile.am: executor -> scheduler sql/cmakelists.txt: executor -> scheduler sql/event.cc: - remove todo comments - remove unneded evex_queue abstraction functions - move events_init() and events_shutdown() from event_executor.cc to here - export db_create_event - remove evex_load_and_compile_event, part of class Event_scheduler - integrate the public interface found in event.h and used by sql_parse.cc to use the new class Event_scheduler. sql/event.h: - add COND_finished so if one thread kills a running event it waits on this - export callback event_timed_definer_equal, event_timed_identifier_equal(), event_timed_name_equal and event_timed_db_equal() to be used by Event_scheduler::drop_matching_events() - cleanup event.h - encapsulated all external interface into class Events sql/event_executor.cc: make it empty, will delete after that sql/event_priv.h: - more things in the private header - remove event queue abstraction functions. tightly bind to QUEUE - export privately db_drop_event, db_find_event, db_create_event() - made change_security_context() and restore_security_context() free functions sql/event_timed.cc: - fix calculation of time when ENDS is set (STARTS is always set) - during Event_timed::compile() set the right Security_ctx. Prevents a crash during Event_scheduler::load_events_from_db() - add Event_timed::kill_thread() - implement event_timed__equal() - made change_security_context() and restore_security_context() free functions. - Comments cleanups sql/lex.h: new word scheduler for SHOW SCHEDULER STATUS (available only debug builds) sql/log.cc: move these from event_scheduler.cc sql/mysql_priv.h: refactor kill_one_thread export sql_print_message_func and sql_print_message_handlers sql/mysqld.cc: In close_connections, called by kill_server() skip the main scheduler thread and use events_shutdown() for shutting down the scheduler, in the same manner it's done for RPL. Add a new value to --event-scheduler : 0 <- No scheduler available 1 <- Start with scheduler enabled 2 <- Start with scheduler suspended sql/repl_failsafe.cc: refactor thd::system_thread to be an enum sql/set_var.cc: move sys_var_event_executor::update() to set_var.cc executor -> scheduler use thd::sys_var_tmp sql/set_var.h: executor -> scheduler sql/share/errmsg.txt: 3 new error messages sql/sql_class.cc: refactor thd::system_thread to be an enum . more type-safety sql/sql_class.h: refactor thd::system_thread to be an enum . more type-safety sql/sql_db.cc: get the error from evex_drop_schema_events sql/sql_error.h: export warning_level_names sql/sql_lex.h: new command SHOW SCHEDULER STATUS, available only in debug build and for debug purposes. sql/sql_parse.cc: refactor kill_one_thread() -> does the dirty* work, and sql_kill just the reporting. add handler for SQLCOM_SHOW_SCHEDULER_STATUS sql/sql_show.cc: fix verbosity handling (this will be obsoleted anyway by the fix for 17394). sql/sql_yacc.yy: remove FULL from SHOW EVENTS add SHOW SCHEDULER STATUS in debug builds sql/table.cc: Fix valgrind warning.	20 years ago
unknown	36815fa1ad	Bug#16837 (Missing #ifdef cause compile problem --without-row-based-replication): Added #ifdef's to make code work even when the system is built without row-based replication. mysql-test/r/create.result: Result change mysql-test/r/innodb_mysql.result: Result change mysql-test/t/create.test: Moving InnoDB specific test to innodb_mysql.test mysql-test/t/innodb_mysql.test: Moving InnoDB-specific test from create.test mysql-test/t/rpl_rbr_to_sbr.test: Test only sensible if we have row-based replication compiled in. mysql-test/t/rpl_row_basic_8partition.test: Test only sensible if we have row-based replication compiled in. sql/log.cc: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/set_var.cc: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/set_var.h: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/share/errmsg.txt: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/sql_base.cc: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/sql_class.cc: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/sql_class.h: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/sql_insert.cc: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/sql_parse.cc: Adding HAVE_ROW_BASED_REPLICATION guards on code to work without row-based replication. sql/sql_table.cc: Not running hooks	20 years ago
unknown	82727c62cf	Follow-up for the patch for bugs #12472/#15137 "CREATE TABLE ... SELECT ... which explicitly or implicitly uses stored function gives 'Table not locked' error" Test case for these bugs crashed in --ps-protocol mode. The crash was caused by incorrect usage of check_grant() routine from create_table_precheck() routine. The former assumes that either number of tables to be inspected by it is limited explicitly (i.e. is is not UINT_MAX) or table list used and thd->lex->query_tables_own_last value correspond to each other. create_table_precheck() was not fulfilling this condition and crash happened. The fix simply sets number of tables to be inspected by check_grant() to 1. sql/sql_parse.cc: create_table_precheck(): At the moment when create_table_precheck() is called TABLE_LIST element representing table to be created does not belong to global table list therefore we should limit number of tables to be inspected by check_grant() explicitly (as in this case table list passed to this function does not correspond to thd->lex->query_tables_own_last value).	20 years ago
unknown	8052fafd31	Reapply fix for bug#16372 (Server crashes when test 'conc_sys' is running) after merge. Concurrent read and update of privilege structures (like simultaneous run of SHOW GRANTS and ADD USER) could result in server crash. Ensure that proper locking of ACL structures is done. No test case is provided because this bug can't be reproduced deterministically. sql/sql_acl.cc: Ensure that access to ACL data is protected by acl_cache->lock mutex. Use system_charset_info for host names consistently. Remove check_acl_user(). Use find_acl_user() instead. sql/sql_acl.h: Remove check_acl_user() declaration. sql/sql_parse.cc: Use is_acl_user() instead of check_acl_user().	20 years ago
unknown	3995b06b40	Don't use row level logging on optimize or repair table. (Fixes core dump in rpl_failed_optimize.test) Ensure we end active transcations if we do an admin command (like optimize, repair etc) mysql-test/extra/rpl_tests/rpl_failed_optimize.test: Added extra test + drop of table at end of test mysql-test/lib/mtr_report.pl: Fail if mysqld asserts or prints stack mysql-test/mysql-test-run.sh: Fail if mysqld asserts or prints stack mysql-test/r/exampledb.result: Cleanup of events_tests (as this caused a lot of problems if it didn't work) mysql-test/r/innodb.result: Extra test to see that we can do an optimize table on an active transaction mysql-test/r/rpl_failed_optimize.result: Added extra test + drop of table at end of test mysql-test/t/exampledb.test: Cleanup of events_tests (as this caused a lot of problems if it didn't work) mysql-test/t/innodb.test: Extra test to see that we can do an optimize table on an active transaction sql/handler.cc: Don't use row level logging on optimize or repair table. sql/log.cc: Simplify code (no logic changes) sql/mysql_priv.h: Added prototype sql/sql_base.cc: Better name for define sql/sql_class.cc: Indentation fix sql/sql_parse.cc: Make end_active_trans() global sql/sql_table.cc: Ensure we end active transcations if we do an admin command (like optimize, repair etc)	20 years ago
unknown	34447eb1db	BUG 19062: CREATE TABLE ... PARTITION BY ... AS SELECT don't create partitioned table mysql-test/r/partition.result: New test case mysql-test/t/partition.test: New test case sql/sql_parse.cc: Moved code to clone the partition info object such that also CREATE TABLE ... AS SELECT benefits from it	20 years ago
unknown	bf8dac3b19	Bug#15463: EXPLAIN SELECT..INTO hangs the client (QB, command line) There were two distict bugs: parse error was returned for valid statement and that error wasn't reported to the client. The fix ensures that EXPLAIN SELECT..INTO is accepted by parser and any other parse error will be reported to the client. mysql-test/r/explain.result: Add result for bug#15463. mysql-test/t/explain.test: Add test case for bug#15463. sql/sql_parse.cc: Assert that if parsing error has occured then apropriate error message has been pushed into error stack. sql/sql_yacc.yy: If there is no lex->result in select_var_ident rule, then we have to be in DESCRIBE mode.	20 years ago
unknown	d50ae16569	Added support for key_block_size for key and table level (WL#602) Added support for key_block_size to MyISAM. Simplify interface to 'new Key' to make it easier to add new key options. mysqld option --new is used to define where key options are printed. (In 5.3 we should move all key options to after key part definition to avoid problem with reserved names) Fixed some compiler warnings and a memory leak in ssl include/my_base.h: Added flag to check if block size for key was secified include/my_sys.h: Added new support function to round up to a power of two include/myisam.h: Rename block_size -> block_size_index to avoid confusion with 'block_size' include/violite.h: Added function to free memory after new_VioSSLAcceptorFd (Will rename all vio_ssl functions in a future changeset) mysql-test/mysql-test-run.pl: Don't print port number info when we use --extern mysql-test/r/myisam.result: Added test for key_block_size mysql-test/t/myisam.test: Added test for key_block_size mysys/mf_keycache.c: Simplify code mysys/my_bit.c: Added new support function to round up to a power of two sql/ha_myisam.cc: Tell MyISAM to use the specified key_block_size MyISAM also updates the global key_block_size from the used values. sql/handler.cc: Added 'default_key_create_info' to be used as 'dummy' argument to 'new Key' sql/handler.h: Added KEY_CREATE_INFO, to be used as for general options for KEY's sql/item_func.h: Removed compiler warning sql/lex.h: Added new symbol sql/mysqld.cc: Fixed memory leak in ssl (new_VioSSLAcceptorFd) sql/sql_class.h: Change 'new Key' to use KEY_CREATE_INFO instead of 'algoritm', parser, key_page_size. This makes it easier to add new key options in the future. sql/sql_lex.h: Added key create options sql/sql_parse.cc: Use new interface to 'new Key' sql/sql_show.cc: Added support for key_block_size If --new is used, key options are printed after the key part definition. sql/sql_table.cc: Use new interface to 'new Key' Add support for key_block_size sql/sql_yacc.yy: Add support for key_block_size Allow key options before and after key_parts (In future they should be always after the key_part defintion) Use new interface to 'new Key' sql/structs.h: Added block_size to keys sql/table.cc: Remmeber and read key_block_size for table and key level sql/table.h: Added default key_block_size for table sql/unireg.cc: Remember key_block_size for key storage/myisam/ft_eval.c: Set block_length to 0 to get default key page size storage/myisam/ft_test1.c: Set block_length to 0 to get default key page size storage/myisam/mi_check.c: block_size -> block_size_index storage/myisam/mi_create.c: Added support for block size per key. Block size is rounded up to next power of two and enforced between MIN and MAX KEY_BLOCK_LENGTH. Align start of key block to start at an even offset of max_key_block_length to ensure key cache works good if all key pages are of same size. storage/myisam/mi_open.c: block_size -> block_size_index storage/myisam/mi_page.c: block_size -> block_size_index storage/myisam/mi_test1.c: Set block_length to 0 to get default key page size storage/myisam/mi_test2.c: Set block_length to 0 to get default key page size storage/myisam/mi_test3.c: Set block_length to 0 to get default key page size storage/myisam/myisamdef.h: block_size -> block_size_index to avoid confusion with 'block_size' in MySQL Added block_size as argument to MI_BLOCK_SIZE Added missing prototypes to get rid of compiler warnings storage/myisam/myisampack.c: Removed compiler warning block_size -> block_size_index vio/viosslfactories.c: Fixed memory leak in ssl (new_VioSSLAcceptorFd) mysql-test/r/myisam-system.result: New BitKeeper file ``mysql-test/r/myisam-system.result'' mysql-test/t/myisam-system.test: New BitKeeper file ``mysql-test/t/myisam-system.test''	20 years ago
unknown	12ede0e0be	Added new show contributors command. sql/lex.h: Additions for show contributors sql/mysql_priv.h: Show contributors addition sql/sp_head.cc: Added for show contributors sql/sql_lex.h: Adding contributors addition sql/sql_parse.cc: Execute for add contributors sql/sql_show.cc: Adding show contributors sql/sql_yacc.yy: Show contributors additio mysql-test/r/contributors.result: New BitKeeper file ``mysql-test/r/contributors.result'' mysql-test/t/contributors.test: New BitKeeper file ``mysql-test/t/contributors.test'' sql/contributors.h: New BitKeeper file ``sql/contributors.h''	20 years ago
unknown	617f8ac9b4	sql_parse.cc: buffer overflow and information exposure bugs fixed (reported by Stefano Di Paola) configure.in: Changed version to 5.0.17b configure.in: Changed version to 5.0.17b sql/sql_parse.cc: buffer overflow and information exposure bugs fixed (reported by Stefano Di Paola)	20 years ago
unknown	d6c2588482	Manually merged	20 years ago
unknown	3010890e58	SECURITY FIX Bug#17667: An attacker has the opportunity to bypass query logging. This adds a new, local-only printf format specifier to our printf functions that allows us to print known-size buffers that must not be interpreted as NUL-terminated "strings." It uses this format-specifier to print to the log, thus fixing this problem. include/my_sys.h: Add prototype for my_memmem() . mysys/Makefile.am: Add reference to new file, my_memmem.c mysys/mf_iocache2.c: Add a "%.1234b" and "%.b" percent-code. It takes a width, just like "%s", but unlike the string-indicator, it requires the width and doesn't stop printing at NUL characters. Also, simplify the code a bit. TODO: This code should be unified with the strings/my_vnsprintf.c code in the future. sql/sql_parse.cc: The query is not a C-string, but is a sized buffer, containing any character at all, which may include NUL characters. strings/my_vsnprintf.c: Add a "%.1234b" and "%.b" percent-code. It takes a width, just like "%s", but unlike the string-indicator, it requires the width and doesn't stop printing at NUL characters. tests/Makefile.am: We may need some of our local functions. tests/mysql_client_test.c: Add a "%.1234b" and "%.b" percent-code. It takes a width, just like "%s", but unlike the string-indicator, it requires the width and doesn't stop printing at NUL characters. mysql-test/t/mysql_client_test.opt: New BitKeeper file ``mysql-test/t/mysql_client_test.opt'' Add '--log' server parameter. mysys/my_memmem.c: New BitKeeper file ``mysys/my_memmem.c'' Implement memmem, a black-box work-alike of the GNU memmem(), which functions like strstr() but for arbitrary blocks of memory.	20 years ago
unknown	36a87d0c0c	after merge	20 years ago
unknown	a940b1a744	after merge fix	20 years ago
unknown	9dd61750f4	small optimization of the previous bugfix (based on the fact that packet is ALWAYS \0 terminated, see my_net_read)	20 years ago
unknown	b3a7131896	buffer overflow and information exposure bugs fixed (reported by Stefano Di Paola)	20 years ago
unknown	7e52383d61	bug #18518 (embedded server crashes starting) The problem is that now server works properly only with the row-based replication config/ac-macros/ha_ndbcluster.m4: WITH_NDB_BINLOG instead of HAVE_NDB_BINLOG in config.h config/ac-macros/replication.m4: WITH_ROW_BASED_REPLICATION instead of HAVE_ROW_BASED_REPLICATION in config.h sql/log.cc: some #ifdef HAVE_ROW_BASED_REPLICATION added sql/mysqld.cc: some #ifdef HAVE_ROW_BASED_REPLICATION added sql/set_var.cc: some #ifdef HAVE_ROW_BASED_REPLICATION added sql/sql_base.cc: some #ifdef HAVE_ROW_BASED_REPLICATION added sql/sql_class.cc: some #ifdef HAVE_ROW_BASED_REPLICATION added sql/sql_class.h: some #ifdef HAVE_ROW_BASED_REPLICATION added sql/sql_parse.cc: some #ifdef HAVE_ROW_BASED_REPLICATION added	20 years ago
unknown	b93dd4327b	Post merge fixes	20 years ago
unknown	9225a51c58	Fixed bug #18767 . The bug caused wrong result sets for union constructs of the form (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2. For such queries order lists were concatenated and limit clause was completely neglected. mysql-test/r/order_by.result: Added a test case for bug #18767. mysql-test/t/order_by.test: Added a test case for bug #18767. sql/sql_lex.h: Fixed bug #18767. Placed the code the created a fake SELECT_LEX into a separate function. sql/sql_parse.cc: Fixed bug #18767. Placed the code the created a fake SELECT_LEX into a separate function. sql/sql_select.cc: Fixed bug #18767. Changed the condition on which a SELECT is treated as part of a UNION. The SELECT in (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 now is handled in the same way as the first SELECT in a UNION sequence. sql/sql_union.cc: Fixed bug #18767. Changed the condition at which a SELECT is treated as part of a UNION. The SELECT in (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 now is handled in the same way as the first SELECT in a UNION sequence. sql/sql_yacc.yy: Fixed bug #18767. Changed the condition at which a SELECT is treated as part of a UNION. The SELECT in (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 now is handled in the same way as the first SELECT in a UNION sequence. In the same way is handled the SELECT in (SELECT ... LIMIT n) ORDER BY order list. Yet if there is neither ORDER BY nor LIMIT in the single-select union construct (SELECT ...) ORDER BY order_list then it is still handled as simple select with an order clause.	20 years ago
unknown	3bcbf91376	BUG#13310 incorrect user parsing by SP - Strip surrounding ''s from username when a new user connects. There is no user 'a@', it should be a@ mysql-test/r/grant2.result: Update test result mysql-test/t/grant2.test: Add tests for bug 13310 sql/sql_parse.cc: Strip surrounding ''s from username when a new user connects. There is no user 'a@', it should be a@	20 years ago
unknown	cc62983ca2	Final patch to remove the last of the OS2 support. client/client_priv.h: OS2 removal client/mysql.cc: OS2 removal dbug/dbug.c: OS2 removal include/m_string.h: OS2 removal include/my_global.h: Cleanup for have_mit libmysql/dll.c: OS2 removal libmysql/get_password.c: OS2 removal libmysql/libmysql.c: OS2 removal libmysql/manager.c: OS2 removal sql-common/client.c: OS2 removal sql/event_executor.cc: OS2 removal sql/hostname.cc: OS2 removal sql/log.cc: OS2 removal sql/log_event.h: OS2 removal sql/my_lock.c: OS2 removal sql/mysql_priv.h: OS2 removal sql/mysqld.cc: OS2 removal sql/net_serv.cc: OS2 removal sql/repl_failsafe.cc: OS2 removal sql/slave.cc: OS2 removal sql/sql_base.cc: OS2 removal sql/sql_insert.cc: OS2 removal sql/sql_load.cc: OS2 removal sql/sql_parse.cc: OS2 removal sql/sql_table.cc: OS2 removal storage/myisam/myisamchk.c: OS2 removal storage/ndb/src/mgmclient/main.cpp: OS2 removal storage/ndb/src/mgmsrv/main.cpp: OS2 removal vio/vio.c: OS2 removal vio/viosocket.c: OS2 removal vio/viossl.c: OS2 removal	20 years ago
unknown	cab73a6009	Bug#15933: max_used_connections is wrong after FLUSH STATUS if connections are cached After FLUSH STATUS max_used_connections was reset to 0, and haven't been updated while cached threads were reused, until the moment a new thread was created. The first suggested fix from original bug report was implemented: a) On flushing the status, set max_used_connections to threads_connected, not to 0. b) Check if it is necessary to increment max_used_connections when taking a thread from the cache as well as when creating new threads mysql-test/r/status.result: Add result for bug#15933. mysql-test/t/status.test: Add test case for bug#15933. Fixed typo. sql/mysql_priv.h: Add declaration of refresh_status(), which is now external. sql/mysqld.cc: Remove start_cached_thread() (code moved directly into create_new_thread()). Add comment for create_new_thread (). In create_new_thread() update max_used_connections when creating new thread and when reusing the cached one. Move refresh_status() from sql/sql_parse.cc here, on refresh set max_used_connections to the current number of connections. sql/sql_parse.cc: refresh_status() moved to sql/mysqld.cc.	20 years ago
unknown	ee3cf23b5c	Fix for bug#14945 "Truncate table doesn't reset the auto_increment counter". When TRUNCATE TABLE was called within an stored procedure the auto_increment counter was not reset to 0 even if straight TRUNCATE for this table did this. This fix makes TRUNCATE in stored procedures to be handled exactly in the same way as straight TRUNCATE. We achieve this by rolling back the fix for bug 8850, which is no longer needed since stored procedures don't require prelocked mode anymore (and TRUNCATE is not allowed in stored functions or triggers). mysql-test/r/sp.result: Test case for BUG#14945. mysql-test/t/sp.test: Test case for BUG#14945. sql/sql_delete.cc: Handle TRUNCATE in stored procedures exactly in the same way as straight TRUNCATE (i.e. without falling back to DELETE if possible). We achieve this by rolling back the fix for bug 8850, which is no longer relevant since stored procedures don't require prelocked mode anymore (and TRUNCATE is not allowed in stored functions or triggers). sql/sql_parse.cc: Handle TRUNCATE in stored procedures exactly in the same way as straight TRUNCATE (i.e. without falling back to DELETE if possible). We achieve this by rolling back the fix for bug 8850, which is no longer relevant since stored procedures don't require prelocked mode anymore (and TRUNCATE is not allowed in stored functions or triggers).	20 years ago
unknown	59eaf292de	Fixed compiler and valgrind warnings Added missing DBUG_xxx_RETURN statements Fixed some usage of not initialized variables (as found by valgrind) Ensure that we don't remove locked tables used as name locks from open table cache until unlock_table_names() are called. This was fixed by having drop_locked_name() returning any table used as a name lock so that we can free it in unlock_table_names() This will allow Tomas to continue with his work to use namelocks to syncronize things. Note: valgrind still produces a lot of warnings about using not initialized code and shows memory loss errors when running the ndb tests BitKeeper/etc/ignore: added mysql-test/r/*.log client/mysqltest.c: Change type of variables to get rid of compiler warnings More debugging Fix memory leak mysql-test/mysql-test-run.sh: Collect warnings about missing DBUG_RETURN statements mysql-test/r/lock_multi.result: Add test of new code mysql-test/r/ndb_condition_pushdown.result: Drop used tables before test mysql-test/t/lock_multi.test: Add test of new code mysql-test/t/ndb_condition_pushdown.test: Drop used tables before test mysql-test/valgrind.supp: Ignore 'safe' warnings from libz (when used with archive) sql/event.cc: More comments Simplify code Fixed memory leak found by valgrind sql/ha_archive.cc: Remove compiler warnings (Wrong handlerton structure and signed/unsigned comparison) sql/ha_berkeley.cc: Fixed compiler warning sql/ha_blackhole.cc: Fixed compiler warning sql/ha_federated.cc: Fixed compiler warning sql/ha_heap.cc: Fixed compiler warning sql/ha_myisam.cc: Fixed compiler warning sql/ha_myisammrg.cc: Fixed compiler warning sql/ha_ndbcluster.cc: Fixed compiler warnings sql/ha_partition.cc: Fixed compiler warning Fixed error noticed by valgrind in ha_partition::rnd_init() sql/handler.cc: Fixed compiler warning sql/handler.h: Fixed compiler warning sql/item.cc: Fixed compiler warning sql/item_xmlfunc.cc: Fixed warning from valgrind when calling memcpy with wrong address sql/lock.cc: More debugging sql/log.cc: Fixed compiler warning Indentation fixes sql/log.h: Fixed compiler warning sql/mysql_priv.h: Changed prototype for 'drop_locked_tables' sql/opt_range.cc: Indentation fix sql/password.c: Removed compiler warnings sql/set_var.cc: Fixed compiler warning sql/slave.cc: Fixed compiler warning sql/sp_head.cc: Fixed compiler warning sql/sql_acl.cc: Fixed compiler warning sql/sql_analyse.cc: Added missing DBUG_RETURN statements sql/sql_base.cc: Removed de-reference of not initialized pointer More comments drop_locked_tables() changed to not delete tables used for name locking Fixed compiler warnings sql/sql_delete.cc: Fixed usage of not initialized variable (deleted could be referenced in some not common error conditions) sql/sql_parse.cc: Added missing DBUG_VOID_RETURN Simplify code sql/sql_partition.cc: Fixed usage of wrong variable (noticed by valgrind) sql/sql_plugin.cc: Removed compiler warning sql/sql_show.cc: Removed compiler warning sql/sql_table.cc: Ensure that we don't remove locked tables used as name locks from open table cache until unlock_table_names() are called. This was fixed by having drop_locked_name() returning any table used as a name lock so that we can free it in unlock_table_names() This will allow Tomas to continue with his work to use namelocks to syncronize things. Fixed wrong test of 'table_type' (path_length could otherwise be accessed uninitialized) Remove compile warnings about not initialized variables. sql/sql_yacc.yy: Ensure that no_write_to_binlog is properly initialized (Was accessed uninitialized by partition code) sql/table.cc: Removed valgrind warnings (not fatal) Removed compiler warnings sql/tztime.cc: Removed valgrind warning storage/ndb/include/ndbapi/NdbIndexStat.hpp: Removed compiler warning	20 years ago
unknown	d8c04a6f6c	Fix compilation failure when compiling without partitioning, introduced by previous push.	20 years ago
unknown	afe397ff66	bug #17290 (sp with delete, create and rollback causes MySQLD core) additional fixes mysql-test/r/partition.result: result fixed mysql-test/t/partition.test: testcase sql/sql_parse.cc: part_info cloning moved here sql/sql_partition.cc: fixes sql/sql_table.cc: part_info cloning removed	20 years ago
unknown	604e0535d7	Bug#18280 (RBR: Extreneous maps when writing to general_log and slow_log): Filter out replication general_log and slow_log entirely from binary log. Caching result of table share-specific tests. mysql-test/r/binlog_row_drop_tmp_tbl.result: Result change mysql-test/r/rpl_row_log.result: Result change mysql-test/r/rpl_row_log_innodb.result: Result change mysql-test/r/rpl_row_max_relay_size.result: Result change sql/handler.cc: Refactoring code to support filtering many tables. Filtering out mysql.general_log and mysql.slow_log from binary log. Caching result from table share-specific tests. sql/sql_class.cc: Correcting comment sql/sql_parse.cc: Using binlog_query() instead of constructing Query_log_events sql/table.cc: Adding variable to cache table check parts for row-based logging. sql/table.h: Adding variable to cache table check parts for row-based logging.	20 years ago
unknown	06dd976419	fix for bug 16408 (Events: crash for an event in a procedure) (one patch) mysql-test/r/events_bugs.result: fix for bug 16408 mysql-test/t/events_bugs.test: fix for bug 16408 sql/event.h: fix for bug 16408 sql/event_timed.cc: fix for bug 16408 sql/sql_parse.cc: fix for bug 16408 sql/sql_yacc.yy: fix for bug 16408	20 years ago

... 3 4 5 6 7 ...

2510 Commits (c33c92d0f2d94e796aa403b80b29477e3400659b)