mariadb

Tree: 2ac3b39e68

Author	SHA1	Message	Date
Sergei Petrunia	2ac3b39e68	EXPLAIN FORMAT=JSON: support derived tables	11 years ago
Oleksandr Byelkin	1827d9e6d1	MDEV-5231: Per query variables from Percona Server (rewritten)	11 years ago
Igor Babaev	3c4bb0e872	MDEV-334: Backport of UNION ALL optimization from mysql-5.7. Although the original code of mysql-5.7 was adjusted to the current MariaDB code the main ideas of the optimization were preserved.	11 years ago
Sergei Golubchik	534cbc1f2a	cleanup: my_init_dynamic_array2 -> init_dynamic_array2	11 years ago
Sergei Golubchik	d7c1e0ebbd	MDEV-5317 Compound statement / anonymous blocks originally based on the patch by Antony T Curtis	11 years ago
Sergei Golubchik	43d1f0b6b9	cleanup: rename List<> methods prepand() -> prepend() concat() -> append()	11 years ago
Sergei Golubchik	e8fb24664e	cleanup: use null_lex_str where appropriate	11 years ago
Jan Lindström	df4dd593f2	MDEV-6247: Merge 10.0-galera to 10.1. Merged lp:maria/maria-10.0-galera up to revision 3879. Added a new functions to handler API to forcefully abort_transaction, producing fake_trx_id, get_checkpoint and set_checkpoint for XA. These were added for future possiblity to add more storage engines that could use galera replication.	11 years ago
Jan Lindström	21b4dec072	Review fixes.	11 years ago
Jan Lindström	5ebb396638	MDEV-6247: Merge 10.0-galera to 10.1. Merged lp:maria/maria-10.0-galera up to revision 3867.	11 years ago
unknown	a270e8abc4	MDEV-6441: memory leak mysql_derived_prepare() was executed on the statement memory. Now it is executed on the runtime memory. All bugs induced by this were fixed.	11 years ago
Gleb Shchepa	01fd5d0d0e	Bug #18978946 : BACKPORT TO 5.6: BUGFIX FOR 18017820 "BISON 3 BREAKS MYSQL BUILD" Backport of the fix: : Bug 18017820: BISON 3 BREAKS MYSQL BUILD : ======================================== : : The source of the reported problem is a removal of a few deprecated : things from Bison 3.x: : * YYPARSE_PARAM macro (use the %parse-param bison directive instead), : * YYLEX_PARAM macro (use %lex-param instead), : : The fix removes obsolete macro calls and introduces use of : %parse-param and %lex-param directives.	12 years ago
Sergei Petrunia	5cfd3270ec	MDEV-6109: EXPLAIN JSON - First code, "EXPLAIN FORMAT=JSON stmt" and "ANALYZE FORMAT=JSON stmt" work for basic queries. Complex constructs (e.g subqueries, etc) not yet supported. - No test infrastructure yet	12 years ago
Sergei Petrunia	eaba1ba4a5	Re-commit in git: MDEV-406: ANALYZE $stmt - Ported the old patch to new explain code - New SQL syntax (ANALYZE $stmt) - ANALYZE UPDATE/DELETE is now supported (because EXPLAIN UPDATE/DELETE is supported) - Basic counters are calculated for basic kinds of queries (still need to see what happens with join buffer, ORDER BY...LIMIT queries, etc)	12 years ago
Sergey Vojtovich	d12c7adf71	MDEV-5314 - Compiling fails on OSX using clang This is port of fix for MySQL BUG#17647863. revno: 5572 revision-id: jon.hauglid@oracle.com-20131030232243-b0pw98oy72uka2sj committer: Jon Olav Hauglid <jon.hauglid@oracle.com> timestamp: Thu 2013-10-31 00:22:43 +0100 message: Bug#17647863: MYSQL DOES NOT COMPILE ON OSX 10.9 GM Rename test() macro to MY_TEST() to avoid conflict with libc++.	12 years ago
Michael Widenius	55829ac13d	Support 6 digit version numbers in executable comment syntax. This is needed to be able to ignore executable comments from version 10.0.	12 years ago
Michael Widenius	d15b3386db	Fix for MDEV-5531: double call procedure in one session - hard shutdown the server Main fix was to not cache derivied tables as they may be temporary tables that are deleted before the next query. This was a bit tricky as Item_field::fix_fields depended on cached_tables to be set to resolve some columns. mysql-test/r/sp-bugs.result: Added test case mysql-test/t/sp-bugs.test: Added test case sql/item.cc: Fixed fix_outer_field to handle case where found field did not have in cached_table Idea is that if cached_table is not avaliable, use from_field->table->pos_in_table_list instead sql/records.cc: Also accept INTERNAL_TMP_TABLE for memmap sql/sql_base.cc: More DBUG_PRINT Fixed that setup_natural_join_row_types() is not run twice. Original code modified context->first_name_resolution_table also for second executions. This was wrong as this could give wrong results if some joins had been optimized away between calls. sql/sql_derived.cc: Mark derived tables as internal temporary tables (INTERNAL_TMP_TABLE), not as NON_TRANSACTIONAL_TMP_TABLE. This is more correct as the tables are not visible by the end user. sql/sql_insert.cc: Reset pos_in_table_list before calling fix_fields. One of the consequences of the change of not caching all generated tables in Item_ident is that pos_in_table_list needs to be correct in calls to fix_fields. sql/sql_lex.cc: More DBUG_PRINT sql/sql_parse.cc: Don't cache derivied tables as they may be temporary tables that are deleted before the next query sql/sql_select.cc: Reset table_vector. This was required as some code checked the vector to see if temporary tables had already been created. sql/table.cc: Mark tables with field translations as cacheable (as these will not disapper between stmt executions.	12 years ago
Alexander Barkov	e1b2de5f0b	A post-fix for MDEV-5009 don't look inside /!50700 ... / comments Fixing "/100000 .../" comments (i.e. MySQL style with 6-digits), which were unintentionally broken in the MDEV-5009 patch. modified: mysql-test/r/comments.result mysql-test/t/comments.test sql/sql_lex.cc	12 years ago
unknown	57400ee681	MDEV-5414: RAND() in a subselect : different behavior in MariaDB and MySQL Materialization forced in case if rand() used in view or derived table to avoud several calls of rand for gting value of a field. Fixed set variable uncachable flag from - it shouldbe a side effect not a random value.	12 years ago
Alexander Barkov	fa7faa2955	MDEV-5009 don't look inside /!50700 ... / comments	12 years ago
Igor Babaev	f8a6ee59ac	Fixed bug mdev-5288. This bug was a consequence of the incorrect fix for bug mdev-5091.	12 years ago
Igor Babaev	ae40c72077	Fixed bug mdev-5091. The function SELECT_LEX::update_used_tables should process all ORDER BY lists in any subselect of a union.	12 years ago
Sergey Petrunya	4bed7aa858	MDEV-3798: [SHOW] EXPLAIN UPDATE/DELETE, Memory leak in binlog.binlog_base64_flag: - It turns out, there are statements that will call lex_start(thd->lex) after parsing has been finished. lex_start() will set lex->explain=NULL, which will lose the pointer to already allocated Explain_plan object. - To get rid of this, switch to lazy creation of lex->explain. Now, it is created only when we get a part ot query plan.	12 years ago
Sergey Petrunya	1ec399ce03	Code cleanup.	12 years ago
Sergey Petrunya	105e3ae6c9	MDEV-3798: EXPLAIN UPDATE/DELETE Update the SHOW EXPLAIN code to work with the new architecture (part#1): Before, SHOW EXPLAIN operated on real query plan structures, which meant it had to check when SELECTs are created/deleted. SELECTs would call apc_target->enable() when they got a query plan and disable() when their query plan was deleted. Now, Explain data structure becomes available at once (and we call apc_target->enable()) and then it stays until it is deleted (when that happens, we call apc_target->disable()).	12 years ago
Sergey Petrunya	72bc6d7364	MDEV-3798: EXPLAIN UPDATE/DELETE - Address review feedback: more renames	12 years ago
Sergey Petrunya	6a7f8af3f9	MDEV-3798: EXPLAIN UPDATE/DELETE - Address review feedback: rename files	12 years ago
Sergey Petrunya	fedf769f0b	MDEV-3798: EXPLAIN UPDATE/DELETE - Address review feedback: rename nearly any name used by the new EXPLAIN code.	12 years ago
Sergei Golubchik	8b5938a127	remove unused LEX::contains_plaintext_password	12 years ago
unknown	1a01e3b959	MDEV-5005: Subquery in Procedure somehow affecting temporary table Removed unneeded set of TABLE_LIST::skip_temporary flag.	12 years ago
Tor Didriksen	28278b1410	Bug#16870783 RECENT REGRESSION: CRASH WITH GROUP_CONCAT AND INVALID SEPARATOR Add missing initialization in lex_start()	12 years ago
Sergey Vojtovich	6fc98018a4	MDEV-4902 - sql_yacc.yy incompatible with bison 3 - YYPARSE_PARAM and YYLEX_PARAM are removed in Bison 3.0. Deprecated since Bison 1.875 in favor of %lex-param, %parse-param. - %parse-param adds an argument to yyerror() as well, updated MYSQLerror() accordingly. - %parse-param allows to declare proper type for argument. That's what 99% of this patch is about.	12 years ago
Igor Babaev	7c85205d19	Fixed bug mdev-4918. The function SELECT_LEX::mark_const_derived() must take into account that in DELETE ... RETURNING join == NULL.	12 years ago
Sergey Petrunya	c0f7efb1ae	Code cleanup	13 years ago
Sergey Petrunya	d634638c56	[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring - If a subquery is correlated wrt a const table, it will change from being a "DEPENDENT SUBQUERY" into "SUBQUERY", at the end of its parent's JOIN::optimize() call. Handle this, update the subquery's QPF. - Make show_explain.test to work = "Query plan already deleted" does not happen anymore. = Handle special case of queries that don't have top-level selects, like SET x = (SELECT ...)	13 years ago
Sergey Petrunya	8b7bbcf4dc	[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring - Make query plan be re-saved after the first join execution (saving it after JOIN::cleanup is too late because EXPLAIN output is currently produced before that) - Handle QPF allocation/deallocation for edge cases, like unsuccessful BINLOG command. - Work around the problem with UNION's direct subselects not being visible. - Update test results ("Using temporary; Using filesort" are now always printed last in the Extra column) - This cset gets rid of memory leaks/crashes. Some result mismatches still remain.	13 years ago
Sergey Petrunya	99a8bfe68c	[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring - Update view.result (old EXPLAIN didn't match the execution) - Put in a stub code to work around the SELECT ... UNION SELECT ... ORDER BY (subuqery) problem	13 years ago
Sujatha Sivakumar	ce29ca8b76	Bug#16753869:INCORRECT TRUNCATION OF LONG SET EXPRESSION IN LOAD DATA CAN CAUSE SQL INJECTION Problem: ======= A long SET expression in LOAD DATA is incorrectly truncated when written to the binary log. Analysis: ======== LOAD DATA statements are reconstructed once again before they are written to the binary log. When SET clauses are specified as part of LOAD DATA statement, these SET clause user command strings need to be stored as it is inorder to reconstruct the original user command. At present these strings are stored as part of SET clause item tree's top most Item node's name itself which is incorrect. As an Item::name can be of MAX_ALIAS_NAME (256) size. Hence the name will get truncated to "255". Because of this the rewritten LOAD DATA statement will be terminated incorrectly. When this statment is read back by the mysqlbinlog tool it reads a starting single quote and continuos to read till it finds an ending quote. Hence any statement written post ending quote will be considered as a new statement. Fix: === As name field has length restriction the string value should not be stored in Item::name. A new String list is maintained to store the SET expression values and this list is read during reconstrution. sql/sql_lex.cc: Clear the load data set string list during each query execution. sql/sql_lex.h: Added a new String list to store the load data operation's SET clause user command strings. sql/sql_load.cc: Read the SET clause user command strings from load data set string list. sql/sql_yacc.yy: Store the SET caluse user command string as part of load data set string list.	13 years ago
Sergey Petrunya	af5e128e50	[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring - Handle statements inside SPs: = regular statements = SET command, which does not have its own statement. - Handle execution of subquery from range optimizer: allocate subquery QPFs on the same MEM_ROOT as the whole query plan was allocated.	13 years ago
Sergey Petrunya	ab4a13b2b9	Switching [EXPLAIN] UPDATE/DELETE to rely on query plan footprints. This requires that subselect's footprints are saved before it is deleted. Attempt to save select's QPF exposes one to a variety of edge cases: - the select may be a UNION's "fake select" which has no valid id - optimization may fail in the middle (but subsequent JOIN::optimize() calls will succeed, despite the fact that there never was a query plan)	13 years ago
Sergey Petrunya	52cfa54c1d	[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring Single table UPDATE/DELETE - Correctly print type=SIMPLE vs type=PRIMARY - Handle UPDATE/DELETE of mergeable VIEWs: we get the VIEW's select as the first subquery. (MySQL 5.6 doesn't print it because it finds that the subquery is not attached to any select)	13 years ago
Sergey Petrunya	0a560289aa	[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring - Introduce back QueryPlan/QueryPlanFootprint separation for single-table UPDATEs/DELETEs - Create an empty QueryPlanFootprint for all kinds of queries	13 years ago
Sergey Petrunya	1951d40a88	[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring - Make EXPLAIN UPDATE/DELETE use "Query Plan Footprints", too.	13 years ago
Michael Widenius	2534521f9a	Fixed some merge issues: - temporary tables now works - mysql-system_tables updated to not use temporary tables - PASSWORD() function fixed - Support for STATS_AUTO_RECALC, STATS_PERSISTENT and STATS_SAMPLE_PAGES table options	13 years ago
Sergey Petrunya	03691a7771	SHOW EXPLAIN UPDATE/DELETE - Introduce "Query Plan Footprints" (abbrev. QPFs) QPF is a part of query plan that is 1. sufficient to produce EXPLAIN output, 2. can be used to produce EXPLAIN output even after its subquery/union was executed and deleted 3. is cheap to save so that we can always save query plans - This patch doesn't fully address #2, we make/save strings for a number of EXPLAIN's columns. This will be fixed.	13 years ago
Michael Widenius	5f1f2fc0e4	Applied all changes from Igor and Sanja	13 years ago
Alexander Barkov	e013bf9f0e	The bug MDEV-4489 "Replication of big5, cp932, gbk, sjis strings makes wrong values on slave" has been fixed. Problem: String constants of some Asian charsets (big5,cp932,gbk,sjis) can have backslash '\' (0x5C) in the second byte of multi-byte characters. Replicating of such constants using the standard '\'-escaping is dangerous. Therefore, constants of these charsets are replicated using hex notation: INSERT INTO t1 (a) VALUES (0x815C); However, 0xHHHH constants do not work well in some cases, because they can behave as strings and as numbers, depending on context (for example, depending on the data type of the column in an INSERT statement). This SQL script was not replicated correctly with statement-based replication: SET NAMES gbk; PREPARE STMT FROM 'INSERT INTO t1 (a) VALUES (?)'; SET @a = '1'; EXECUTE STMT USING @a; The INSERT statement was replicated as: INSERT INTO t1 (a) VALUES (0x31); '1' was correctly converted to the number 1 on master. But the 0x31 constant was treated as number 49 on slave. Fix: 1. Binary log now uses X'HHHH' instead of 0xHHHH constants. 2. The X'HHHH' constants now work always as strings, in all contexts. This is the SQL standard compliant behaviour. After the fix, the above statement is replicated as: INSERT INTO t1 (a) VALUES (X'31'); X'31' is treated as string '1' on slave, and is correctly converted to 1. modified: @ mysql-test/r/ctype_cp932_binlog_stm.result @ mysql-test/r/select.result @ mysql-test/r/select_jcl6.result @ mysql-test/r/select_pkeycache.result @ mysql-test/r/user_var-binlog.result @ mysql-test/r/varbinary.result @ mysql-test/suite/binlog/r/binlog_stm_ctype_ucs.result @ mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result @ mysql-test/suite/rpl/r/rpl_charset_sjis.result @ mysql-test/suite/rpl/r/rpl_mdev382.result @ mysql-test/suite/rpl/t/rpl_charset_sjis.test @ mysql-test/t/ctype_cp932_binlog_stm.test @ mysql-test/t/select.test @ mysql-test/t/varbinary.test Adding and updating tests @ sql/item.cc @ sql/item.h @ sql/sql_yacc.yy @ sql/sql_lex.cc Splitting the implementations of X'HH' and 0xHH constants into two separate classes. Fixing the parser to distinguish the two syntaxes. @ sql/log_event.cc Using X'HH' instead of 0xHH for binary logging for string constants of the "dangerous" charsets. @ sql/sql_string.h Adding a helped method String::append_hex().	13 years ago
unknown	682c8a36ca	MDEV-4290: Fix agregate function resolution in derived tables (no name resolution over a derived table border)	13 years ago
Chaithra Gopalareddy	2d83663380	Bug#16347426:ASSERTION FAILED: (SELECT_INSERT && !TABLES->NEXT_NAME_RESOLUTION_TABLE) \|\| !TAB Problem: The context info of select query gets corrupted when a query with group_concat having order by is present in an order by clause of the select query. As a result, server crashes with an assert. Analysis: While parsing order by for group_concat, it is presumed that it is always present before the actual order by for the select query. As a result, parser uses select->order_list to populate the order by items of group_concat and creates a select->gorder_list to which select->order_list is copied onto. Once this is done, it empties the select->order_list. In the case presented in the bugpage, as order by is already parsed when group_concat's order by is encountered, parser presumes that it is the second order by in the select query and creates fake_lex_unit which results in the change of context info. Solution: Make group_concat's order by parsing independent of the select sql/item_sum.cc: Change the argument as, select->gorder_list is not pointer anymore sql/item_sum.h: Change the argument as, select->gorder_list is not pointer anymore sql/mysql_priv.h: Parsing for group_concat's order by is made independent. As a result, add_order_to_list cannot be used anymore. sql/sql_lex.cc: Parsing for group_concat's order by is made independent. As a result, add_order_to_list cannot be used anymore. sql/sql_lex.h: Parsing for group_concat's order by is made independent. As a result, add_order_to_list cannot be used anymore. sql/sql_yacc.yy: Make group_concat's order by parsing independent of the select queries order by.	13 years ago
Alexey Botchkov	d8dccde6df	MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252 ). Syntax modified to allow statements: ALTER TABLE ADD/DROP COLUMN ALTER TABLE ADD/DROP INDEX ALTER TABLE ADD/DROP FOREIGN KEY ALTER TABLE ADD/DROP PARTITION ALTER TABLE CHANGE COLUMN ALTER TABLE MODIFY COLUMN DROP INDEX to have IF (NOT) EXISTS options. Appropriate implementations added to mysql_alter_table(). per-file comments: mysql-test/r/alter_table.result MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). test result updated. mysql-test/r/fulltext.result MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). mysql-test/r/partition.result test result updated. MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). mysql-test/t/alter_table.test tests added. MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). mysql-test/t/fulltext.test MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). tests added. mysql-test/t/partition.test MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). tests added. sql/field.cc MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). create_if_not_exists field added. sql/field.h MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). create_if_not_exists field added. sql/partition_info.h MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). has_unique_name made public. sql/sp_head.cc MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). sql/sql_class.cc MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). create_if_not_exists inited. sql/sql_class.h MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). create_if_not_exists inited. sql/sql_lex.cc MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). check_exists inited. sql/sql_lex.h MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). check_exists inited. sql/sql_parse.cc MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). check_exists inited. sql/sql_table.cc MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). handle_if_exists_options() added. it's called in mysql_alter_table(). sql/sql_trigger.cc MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). check_exists instead of drop_if_exists. sql/sql_view.cc MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). check_exists instead of drop_if_exists. sql/sql_yacc.yy MDEV-318 IF (NOT) EXIST clauses for ALTER TABLE (MWL #252). sintax modified.	13 years ago

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