mariadb

Commit Graph

Author	SHA1	Message	Date
Oleksandr Byelkin	76577e1e26	typo fix	8 years ago
Oleksandr Byelkin	ba8d0fa700	MDEV-14786: Server crashes in Item_cond::transform on 2nd execution of SP querying from a view MDEV-14957: JOIN::prepare gets unusable "conds" as argument Do not touch merged derived (it is irreversible) Fix first argument of in_optimizer for calls possible before fix_fields()	8 years ago
Alexander Barkov	20089f5a39	MDEV-14596 Crash in INTERVAL(ROW(..),ROW(..))	8 years ago
Oleksandr Byelkin	2913f615f0	MDEV-8949: COLUMN_CREATE unicode name breakage Use utf-mb4 if it is possible.	8 years ago
Sergei Golubchik	7ec6c6fa62	typo	8 years ago
Oleksandr Byelkin	c2c93fc6e4	MDEV-14164: Unknown column error when adding aggregate to function in oracle style procedure FOR loop Make differentiation between pullout for merge and pulout of outer field during exists2in transformation. In last case the field was outer and so we can safely start from name resolution context of the SELECT where it was pulled. Old behavior lead to inconsistence between list of tables and outer name resolution context (which skips one SELECT for merge purposes) which creates problem vor name resolution.	8 years ago
Sergei Golubchik	2fcd8c1252	MDEV-13173 An RLIKE that previously worked on 10.0 now returns "Got error 'pcre_exec: recursion limit of 100 exceeded' from regexp" 1. use Regexp_processor_pcre::set_recursion_limit() to set the recursion limit depending on the current available stack size 2. make pcre stack frame to be estimated no less than 500 bytes. sometimes pcre estimates it too low, even though the manual says 500+16 bytes (it was estimated only 188 for me, actual frame size was 512). 3. do it for embedded too	8 years ago
Sergei Golubchik	52aa200919	MDEV-12420 max_recursive_iterations did not prevent a stack-overflow and segfault post-review fixes * move pcre-specific variable out of mysys * don't use current_thd * move a commonly used macro to my_sys.h * remove new sysvar	9 years ago
Daniel Black	fbc057ad36	MDEV-12420: add full list of pcre error messages	9 years ago
Daniel Black	d672f88ef7	MDEV-12420: PCRE stack overflow It was possible to construct a PCRE expression that exceeded the stack. resulting in a crash: With fix: MariaDB [(none)]> SELECT 1 -> FROM dual -> WHERE ('Alpha,Bravo,Charlie,Delta,Echo,Foxtrot,StrataCentral,Golf,Hotel,India,Juliet,Kilo,Lima,Mike,StrataL3,November,Oscar,StrataL2,Sand,P3,P4SwitchTest,Arsys,Poppa,ExtensionMgr,Arp,Quebec,Romeo,StrataApiV2,PtReyes,Sierra,SandAcl,Arrow,Artools,BridgeTest,Tango,SandT,PAlaska,Namespace,Agent,Qos,PatchPanel,ProjectReport,Ark,Gimp,Agent,SliceAgent,Arnet,Bgp,Ale,Tommy,Central,AsicPktTestLib,Hsc,SandL3,Abuild,Pca9555,Standby,ControllerDut,CalSys,SandLib,Sb820,PointV2,BfnLib,Evpn,BfnSdk,Sflow,ManagementActive,AutoTest,GatedTest,Bgp,Sand,xinetd,BfnAgentLib,bf-utils,Hello,BfnState,Eos,Artest,Qos,Scd,ThermoMgr,Uniform,EosUtils,Eb,FanController,Central,BfnL3,BfnL2,tcp_wrappers,Victor,Environment,Route,Failover,Whiskey,Xray,Gimp,BfnFixed,Strata,SoCal,XApi,Msrp,XpProfile,tcpdump,PatchPanel,ArosTest,FhTest,Arbus,XpAcl,MacConc,XpApi,telnet,QosTest,Alpha2,BfnVlan,Stp,VxlanControllerTest,MplsAgent,Bravo2,Lanz,BfnMbb,Intf,XCtrl,Unicast,SandTunnel,L3Unicast,Ipsec,MplsTest,Rsvp,EthIntf,StageMgr,Sol,MplsUtils,Nat,Ira,P4NamespaceDut,Counters,Charlie2,Aqlc,Mlag,Power,OpenFlow,Lag,RestApi,BfdTest,strongs,Sfa,CEosUtils,Adt746,MaintenanceMode,MlagDut,EosImage,IpEth,MultiProtocol,Launcher,Max3179,Snmp,Acl,IpEthTest,PhyEee,bf-syslibs,tacc,XpL2,p4-ar-switch,p4-bf-switch,LdpTest,BfnPhy,Mirroring,Phy6,Ptp' -> -> REGEXP '^((?!\b(Strata\|StrataApi\|StrataApiV2)\b).)*$'); Empty set, 1 warning (0.00 sec) MariaDB [(none)]> show warnings; +---------+------+---------------------------------------------------------+ \| Level \| Code \| Message \| +---------+------+---------------------------------------------------------+ \| Warning \| 1139 \| Got error 'pcre_exec: Internal error (-21)' from regexp \| +---------+------+---------------------------------------------------------+	9 years ago
Sergei Golubchik	798fcb5416	bugfix: cmp_item_row::alloc_comparators() allocated on the wrong arena it used current_thd->alloc() and allocated on the thd's execution arena, not on table->expr_arena. Remove THD::arena_for_cached_items that is temporarily set in update_virtual_fields(), and replaces THD arena in get_datetime_value(). Instead set THD arena to table->expr_arena for the whole duration of update_virtual_fields()	9 years ago
Sergei Golubchik	67e2028161	MDEV-9690 concurrent queries with virtual columns crash in temporal code Item_func_le included Arg_comparator. Arg_comparator remembered the current_thd during fix_fields and used that value during execution to allocate Item_cache in get_datetime_value(). But for vcols fix_fields and val_int can happen in different threads. Same bug for Item_func_in using in_datetime or cmp_item_datetime, both also remembered current_thd at fix_fields() to use it later for get_datetime_value(). As a fix, these objects no longer remember the current_thd, and get_datetime_value() uses current_thd at run time. This should not increase the number of current_thd calls much, as Item_cache is created only once anyway.	9 years ago
Alexander Barkov	3f0d07e55b	MDEV-9372 select 100 between 1 and 9223372036854775808 returns false Integer comparison of INT expressions with different signess in BETWEEN is not safe. Switching to DECIMAL comparison in case if INT arguments have different signess.	10 years ago
Alexander Barkov	9a987142f9	MDEV-9745 Crash with CASE WHEN TRUE THEN COALESCE(CAST(NULL AS UNSIGNED)) ELSE 4 END This is a backport of the patch for MDEV-9653 (fixed earlier in 10.1.13). The code in Item_func_case::fix_length_and_dec() did not calculate max_length and decimals properly. In case of any numeric result (DECIMAL, REAL, INT) a generic method Item_func_case::agg_num_lengths() was called, which could erroneously result into a DECIMAL item with max_length==0 and decimals==0, so the constructor of Field_new_decimals tried to create a field of DECIMAL(0,0) type, which caused a crash. Unlike Item_func_case, the code responsible for merging attributes in Item_func_coalesce::fix_length_and_dec() works fine: it has specific execution branches for all distinct numeric types and correctly creates a DECIMAL(1,0) column instead of DECIMAL(0,0) for the same set of arguments. The fix does the following: - Moves the attribute merging code from Item_func_coalesce::fix_length_and_dec() to a new method Item_func_hybrid_result_type::fix_attributes() - Removes the wrong code from Item_func_case::fix_length_and_dec() and reuses fix_attributes() in both Item_func_coalesce::fix_length_and_dec() and Item_func_case::fix_length_and_dec() - Fixes count_real_length() and count_decimal_length() to get an array of Items as an argument, instead of using Item::args directly. This is needed for Item_func_case::fix_length_and_dec(). - Moves methods Item_func::count_xxx_length() from "public" to "protected". - Removes Item_func_case::agg_num_length(), as it's not used any more. - Additionally removes Item_func_case::agg_str_length(), as it also was not used (dead code).	10 years ago
Alexander Barkov	6fd54c01bb	MDEV-9521 Least function returns 0000-00-00 for null date columns instead of null Item_func_ifnull::date_op() and Item_func_coalesce::date_op() could erroneously return 0000-00-00 instead of NULL when get_date() was called with the TIME_FUZZY_DATES flag, e.g. from LEAST().	10 years ago
Chaithra Gopalareddy	a7fb5aecfd	Bug#19941403: FATAL_SIGNAL(SIG 6) IN BUILD_EQUAL_ITEMS_FOR_COND \| IN SQL/SQL_OPTIMIZER.CC:1657 Problem: At the end of first execution select_lex->prep_where is pointing to a runtime created object (temporary table field). As a result server exits trying to access a invalid pointer during second execution. Analysis: While optimizing the join conditions for the query, after the permanent transformation, optimizer makes a copy of the new where conditions in select_lex->prep_where. "prep_where" is what is used as the "where condition" for the query at the start of execution. W.r.t the query in question, "where" condition is actually pointing to a field in the temporary table. As a result, for the second execution the pointer is no more valid resulting in server exit. Fix: At the end of the first execution, select_lex->where will have the original item of the where condition. Make prep_where the new place where the original item of select->where has to be rolled back. Fixed in 5.7 with the wl#7082 - Move permanent transformations from JOIN::optimize to JOIN::prepare Patch for 5.5 includes the following backports from 5.6: Bugfix for Bug12603141 - This makes the first execute statement in the testcase pass in 5.5 However it was noted later in in Bug16163596 that the above bugfix needed to be modified. Although Bug16163596 is reproducible only with changes done for Bug12582849, we have decided include the fix. Considering that Bug12582849 is related to Bug12603141, the fix is also included here. However this results in Bug16317817, Bug16317685, Bug16739050. So fix for the above three bugs is also part of this patch.	10 years ago
Oleksandr Byelkin	504802f333	MDEV-7846: postreview fix	10 years ago
Oleksandr Byelkin	54b998173b	MDEV-7846: Server crashes in Item_subselect::fix_fields or fails with Thread stack overrun Substitute into transformed subselects original left expression and than register its change in case it was substituted.	11 years ago
Oleksandr Byelkin	2e3e818048	MDEV-7445: Server crash with Signal 6 Problem was in rewriting left expression which had 2 references on it. Solved with making subselect reference main. Item_in_optimized can have not Item_in_subselect reference in left part so type casting with no check is dangerous. Item::cols() should be checked after Item::fix_fields().	11 years ago
Oleksandr Byelkin	5cc149feba	The compiler warnings fixed.	10 years ago
Sreeharsha Ramanavarapu	4acc7615ee	Bug #19929406 : HANDLE_FATAL_SIGNAL (SIG=11) IN __MEMMOVE_SSSE3_BACK FROM STRING::COPY Issue: ----- While using row comparators, the store_value functions call val_xxx functions in the prepare phase. This can cause valgrind issues. SOLUTION: --------- Setting up of the comparators should be done by alloc_comparators in the prepare phase. Also, make sure store_value will be called only during execute phase. This is a backport of the fix for Bug#17755540.	10 years ago
Oleksandr Byelkin	102a85f9f3	MDEV-8663: IF Statement returns multiple values erroneously (or Assertion `!null_value' failed in Item::send(Protocol, String)) Postreview addons by Bar Fix: keeping contract: NULL value mean NULL pointer in val_str and val_deciman.	10 years ago
Alexander Barkov	46199c0e1d	MDEV-8102 REGEXP function fails to match hex values when expression is stored as a variable We don't fix the bug itself, we just make regex functions display errors returned from pcre_exec() as MariaDB warnings.	11 years ago
Alexander Barkov	6e6750ad6c	MDEV-7366 SELECT 'a' = BINARY 'A' returns 1 (utf8 charset, utf8_unicode_ci collation) Fixing a wrong assymetric code in Arg_comparator::set_cmp_func(). It existed for a long time, but showed up in 10.0.14 after the fix for "MDEV-6666 Malformed result for CONCAT(utf8_column, binary_string)".	11 years ago
Alexander Barkov	d1ca1c1fae	MDEV-7001 Bad result for NOT NOT STRCMP('a','b') and NOT NOT NULLIF(2,3) The bug is not very important per se, but it was helpful to move Item_func_strcmp out of Item_bool_func2 (to Item_int_func), for the purposes of "MDEV-4912 Add a plugin to field types (column types)".	11 years ago
Michael Widenius	70823e1d91	MDEV-5120 Test suite test maria-no-logging fails The reason for the failure was a bug in an include file on debian that causes 'struct stat' to have different sized depending on the environment. This patch fixes so that we always include my_global.h or my_config.h before we include any other files. Other things: - Removed #include <my_global.h> in some include files; Better to always do this at the top level to have as few "always-include-this-file-first' files as possible. - Removed usage of some include files that where already included by my_global.h or by other files. client/mysql_plugin.c: Use my_global.h first client/mysqlslap.c: Remove duplicated include files extra/comp_err.c: Remove duplicated include files include/m_string.h: Remove duplicated include files include/maria.h: Remove duplicated include files libmysqld/emb_qcache.cc: Use my_global.h first plugin/semisync/semisync.h: Use my_pthread.h first sql/datadict.cc: Use my_global.h first sql/debug_sync.cc: Use my_global.h first sql/derror.cc: Use my_global.h first sql/des_key_file.cc: Use my_global.h first sql/discover.cc: Use my_global.h first sql/event_data_objects.cc: Use my_global.h first sql/event_db_repository.cc: Use my_global.h first sql/event_parse_data.cc: Use my_global.h first sql/event_queue.cc: Use my_global.h first sql/event_scheduler.cc: Use my_global.h first sql/events.cc: Use my_global.h first sql/field.cc: Use my_global.h first Remove duplicated include files sql/field_conv.cc: Use my_global.h first sql/filesort.cc: Use my_global.h first Remove duplicated include files sql/gstream.cc: Use my_global.h first sql/ha_ndbcluster.cc: Use my_global.h first sql/ha_ndbcluster_binlog.cc: Use my_global.h first sql/ha_ndbcluster_cond.cc: Use my_global.h first sql/ha_partition.cc: Use my_global.h first sql/handler.cc: Use my_global.h first sql/hash_filo.cc: Use my_global.h first sql/hostname.cc: Use my_global.h first sql/init.cc: Use my_global.h first sql/item.cc: Use my_global.h first sql/item_buff.cc: Use my_global.h first sql/item_cmpfunc.cc: Use my_global.h first sql/item_create.cc: Use my_global.h first sql/item_geofunc.cc: Use my_global.h first sql/item_inetfunc.cc: Use my_global.h first sql/item_row.cc: Use my_global.h first sql/item_strfunc.cc: Use my_global.h first sql/item_subselect.cc: Use my_global.h first sql/item_sum.cc: Use my_global.h first sql/item_timefunc.cc: Use my_global.h first sql/item_xmlfunc.cc: Use my_global.h first sql/key.cc: Use my_global.h first sql/lock.cc: Use my_global.h first sql/log.cc: Use my_global.h first sql/log_event.cc: Use my_global.h first sql/log_event_old.cc: Use my_global.h first sql/mf_iocache.cc: Use my_global.h first sql/mysql_install_db.cc: Remove duplicated include files sql/mysqld.cc: Remove duplicated include files sql/net_serv.cc: Remove duplicated include files sql/opt_range.cc: Use my_global.h first sql/opt_subselect.cc: Use my_global.h first sql/opt_sum.cc: Use my_global.h first sql/parse_file.cc: Use my_global.h first sql/partition_info.cc: Use my_global.h first sql/procedure.cc: Use my_global.h first sql/protocol.cc: Use my_global.h first sql/records.cc: Use my_global.h first sql/records.h: Don't include my_global.h Better to do this at the upper level sql/repl_failsafe.cc: Use my_global.h first sql/rpl_filter.cc: Use my_global.h first sql/rpl_gtid.cc: Use my_global.h first sql/rpl_handler.cc: Use my_global.h first sql/rpl_injector.cc: Use my_global.h first sql/rpl_record.cc: Use my_global.h first sql/rpl_record_old.cc: Use my_global.h first sql/rpl_reporting.cc: Use my_global.h first sql/rpl_rli.cc: Use my_global.h first sql/rpl_tblmap.cc: Use my_global.h first sql/rpl_utility.cc: Use my_global.h first sql/set_var.cc: Added comment sql/slave.cc: Use my_global.h first sql/sp.cc: Use my_global.h first sql/sp_cache.cc: Use my_global.h first sql/sp_head.cc: Use my_global.h first sql/sp_pcontext.cc: Use my_global.h first sql/sp_rcontext.cc: Use my_global.h first sql/spatial.cc: Use my_global.h first sql/sql_acl.cc: Use my_global.h first sql/sql_admin.cc: Use my_global.h first sql/sql_analyse.cc: Use my_global.h first sql/sql_audit.cc: Use my_global.h first sql/sql_base.cc: Use my_global.h first sql/sql_binlog.cc: Use my_global.h first sql/sql_bootstrap.cc: Use my_global.h first Use my_global.h first sql/sql_cache.cc: Use my_global.h first sql/sql_class.cc: Use my_global.h first sql/sql_client.cc: Use my_global.h first sql/sql_connect.cc: Use my_global.h first sql/sql_crypt.cc: Use my_global.h first sql/sql_cursor.cc: Use my_global.h first sql/sql_db.cc: Use my_global.h first sql/sql_delete.cc: Use my_global.h first sql/sql_derived.cc: Use my_global.h first sql/sql_do.cc: Use my_global.h first sql/sql_error.cc: Use my_global.h first sql/sql_explain.cc: Use my_global.h first sql/sql_expression_cache.cc: Use my_global.h first sql/sql_handler.cc: Use my_global.h first sql/sql_help.cc: Use my_global.h first sql/sql_insert.cc: Use my_global.h first sql/sql_lex.cc: Use my_global.h first sql/sql_load.cc: Use my_global.h first sql/sql_locale.cc: Use my_global.h first sql/sql_manager.cc: Use my_global.h first sql/sql_parse.cc: Use my_global.h first sql/sql_partition.cc: Use my_global.h first sql/sql_plugin.cc: Added comment sql/sql_prepare.cc: Use my_global.h first sql/sql_priv.h: Added error if we use this before including my_global.h This check is here becasue so many files includes sql_priv.h first. sql/sql_profile.cc: Use my_global.h first sql/sql_reload.cc: Use my_global.h first sql/sql_rename.cc: Use my_global.h first sql/sql_repl.cc: Use my_global.h first sql/sql_select.cc: Use my_global.h first sql/sql_servers.cc: Use my_global.h first sql/sql_show.cc: Added comment sql/sql_signal.cc: Use my_global.h first sql/sql_statistics.cc: Use my_global.h first sql/sql_table.cc: Use my_global.h first sql/sql_tablespace.cc: Use my_global.h first sql/sql_test.cc: Use my_global.h first sql/sql_time.cc: Use my_global.h first sql/sql_trigger.cc: Use my_global.h first sql/sql_udf.cc: Use my_global.h first sql/sql_union.cc: Use my_global.h first sql/sql_update.cc: Use my_global.h first sql/sql_view.cc: Use my_global.h first sql/sys_vars.cc: Added comment sql/table.cc: Use my_global.h first sql/thr_malloc.cc: Use my_global.h first sql/transaction.cc: Use my_global.h first sql/uniques.cc: Use my_global.h first sql/unireg.cc: Use my_global.h first sql/unireg.h: Removed inclusion of my_global.h storage/archive/ha_archive.cc: Added comment storage/blackhole/ha_blackhole.cc: Use my_global.h first storage/csv/ha_tina.cc: Use my_global.h first storage/csv/transparent_file.cc: Use my_global.h first storage/federated/ha_federated.cc: Use my_global.h first storage/federatedx/federatedx_io.cc: Use my_global.h first storage/federatedx/federatedx_io_mysql.cc: Use my_global.h first storage/federatedx/federatedx_io_null.cc: Use my_global.h first storage/federatedx/federatedx_txn.cc: Use my_global.h first storage/heap/ha_heap.cc: Use my_global.h first storage/innobase/handler/handler0alter.cc: Use my_global.h first storage/maria/ha_maria.cc: Use my_global.h first storage/maria/unittest/ma_maria_log_cleanup.c: Remove duplicated include files storage/maria/unittest/test_file.c: Added comment storage/myisam/ha_myisam.cc: Move sql_plugin.h first as this includes my_global.h storage/myisammrg/ha_myisammrg.cc: Use my_global.h first storage/oqgraph/oqgraph_thunk.cc: Use my_config.h and my_global.h first One could not include my_global.h before oqgraph_thunk.h (don't know why) storage/spider/ha_spider.cc: Use my_global.h first storage/spider/hs_client/config.cpp: Use my_global.h first storage/spider/hs_client/escape.cpp: Use my_global.h first storage/spider/hs_client/fatal.cpp: Use my_global.h first storage/spider/hs_client/hstcpcli.cpp: Use my_global.h first storage/spider/hs_client/socket.cpp: Use my_global.h first storage/spider/hs_client/string_util.cpp: Use my_global.h first storage/spider/spd_conn.cc: Use my_global.h first storage/spider/spd_copy_tables.cc: Use my_global.h first storage/spider/spd_db_conn.cc: Use my_global.h first storage/spider/spd_db_handlersocket.cc: Use my_global.h first storage/spider/spd_db_mysql.cc: Use my_global.h first storage/spider/spd_db_oracle.cc: Use my_global.h first storage/spider/spd_direct_sql.cc: Use my_global.h first storage/spider/spd_i_s.cc: Use my_global.h first storage/spider/spd_malloc.cc: Use my_global.h first storage/spider/spd_param.cc: Use my_global.h first storage/spider/spd_ping_table.cc: Use my_global.h first storage/spider/spd_sys_table.cc: Use my_global.h first storage/spider/spd_table.cc: Use my_global.h first storage/spider/spd_trx.cc: Use my_global.h first storage/xtradb/handler/handler0alter.cc: Use my_global.h first storage/xtradb/handler/i_s.cc: Use my_global.h first	11 years ago
Alexander Barkov	216fbe2af3	MDEV-6102 Comparison between TIME and DATETIME does not use CURRENT_DATE MDEV-6101 Hybrid functions do not add CURRENT_DATE when converting TIME to DATETIME	12 years ago
unknown	113333d447	MDEV-6046: MySQL Bug#11766684 59851: UNINITIALISED VALUE IN ITEM_FUNC_LIKE::SELECT_OPTIMIZE WITH SUBQUERY AND	12 years ago
Alexander Barkov	f9e5f237f0	MDEV-6027 RLIKE: "." no longer matching new line Added a new system variable: default_regex_flags='DOTALL,DUPNAMES,EXTENDED,EXTRA,MULTILINE,UNGREEDY'	12 years ago
Alexander Barkov	f467f4bb93	MDEV-5459 Illegal mix of collations for datetime	12 years ago
Alexander Barkov	1081e403c6	MDEV-5702 Incorrect results are returned with NULLIF()	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
Alexander Barkov	074455105c	MDEV-5445 Server crashes in Item_func_like::fix_fields on LIKE ExtractValue(..) backporting from the main 10.0 modified: mysql-test/r/func_like.result mysql-test/t/func_like.test sql/item_cmpfunc.cc	12 years ago
Alexander Barkov	c5004e399e	MDEV-5445 Server crashes in Item_func_like::fix_fields on LIKE ExtractValue(..) Fixed.	12 years ago
Igor Babaev	59f099dda1	Post-review changes of the patch for bug mdev-5103.	12 years ago
Igor Babaev	c0f31dc9f3	Another attempt to fix bug mdev-5103. The earlier pushed fix for the bug was incomplete. It did not remove the main cause of the problem: the function remove_eq_conds() removed always true multiple equalities from any conjunct, but did not adjust the list of them stored in Item_cond_and::cond_equal.current_level. Simplified the test case for the bug and moved it to another test file. The fix triggered changes in EXPLAIN EXTENDED for some queries.	12 years ago
Alexander Barkov	03f6778d61	MDEV-5298 Illegal mix of collations on timestamp Fixed.	12 years ago
Alexander Barkov	2394fa67d4	MDEV-4859 Wrong value and data type of "SELECT MAX(time_column) + 1 FROM t1" Fixed.	12 years ago
unknown	c98a054fde	MDEV-5153: Server crashes in Item_ref::fix_fields on 2nd execution of PS with LEFT JOIN and MERGE view or SELECT SQ 1. Transformation of row IN subquery made the same as single value. 2. replace_where_subcondition() made working on several layers of OR/AND because it called on expression before fix_fields().	12 years ago
unknown	c85db2c494	MDEV-5103: server crashed on singular Item_equal Singular Item_equal support added. The problem was that during constant table substitution Item_equal become containing only one constant which was not supported internally.	12 years ago
Igor Babaev	78b580b779	Fixed bug mdev-5132. Objects of the classes Item_func_isnull and Item_func_isnotnull must have the flag sargable set to TRUE. Set the value of the flag sargable only in constructors of the classes inherited from Item_int_func.	12 years ago
Igor Babaev	7c87385e30	Fixed bug mdev-5105. The bug caused a memory overwrite in the function update_ref_and_keys() It happened due to a wrong value of SELECT_LEX::cond_count. This value historically was calculated by the fix_fields method. Now the logic of calling this method became too complicated and, as a result, this value is calculated not always correctly. The patch changes the way how and when the values of SELECT_LEX::cond_count and of SELECT_LEX::between_count are calculated. The new code does it just at the beginning of update_ref_and_keys().	12 years ago
Alexander Barkov	285e7aa179	MDEV-4425 REGEXP enhancements	12 years ago
unknown	ec7da1561e	MDEV-5039: incorrect Item_func_regex::update_used_tables() Other fix of maybe_null problem and revert of revno: 3608 "MDEV-3873 & MDEV-3876 & MDEV-3912 : Wrong result (extra rows) with ALL subquery from a MERGE view."	12 years ago
unknown	9dbeb9882f	MDEV-4993:Impossible to free a dynamic column Fix of API of dynamic columns (it made uniform and real function used to free the string).	12 years ago
Alexander Barkov	5177178eef	Removing Item_func_regex::fix_fields() (using the inherited one instead). Moving the code int Item_func_regex::fix_length_and_dec(). modified: sql/item_cmpfunc.cc sql/item_cmpfunc.h	12 years ago
Alexander Barkov	c2b38529a9	MDEV-4863 COALESCE(time_or_datetime) returns wrong results in numeric context	12 years ago
Sergey Petrunya	edd980225a	Fix for MDEV-4836 fix: take into account situation where "notnull_col IS NULL" is not a direct child of the WHERE clause item, but rather is embedded inside Item_cond_and or Item_cond_or.	12 years ago
Sergey Petrunya	970542ec90	MDEV-4836: Wrong result on <not null date column> IS NULL (old documented hack stopped working) - When applying optimization introduced by MDEV-4817, ignore the conditions that have form "datetime_not_null_col IS NULL".	12 years ago
Alexander Barkov	c40de1df36	MDEV-4804 Date comparing false result	12 years ago

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2085 Commits (d833bb65d53b9a4375fa71cc485b4719fdb0ee53)