- 17 Oct, 2006 7 commits
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unknown authored
into rurik.mysql.com:/home/igor/mysql-5.0-opt sql/sql_select.cc: Auto merged
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unknown authored
into rurik.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug19579 mysql-test/t/select.test: Auto merged sql/sql_select.cc: Auto merged mysql-test/r/select.result: SCCS merged
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unknown authored
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unknown authored
into macbook.gmz:/Users/kgeorge/mysql/work/B21798-5.0-opt-merge sql/mysql_priv.h: Auto merged sql/sql_delete.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_table.cc: Auto merged sql/sql_update.cc: Auto merged mysql-test/r/subselect.result: merge fixes for bug 21798 mysql-test/t/subselect.test: merge fixes for bug 21798
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unknown authored
list using a function When executing dependent subqueries they are re-inited and re-exec() for each row of the outer context. The cause for the bug is that during subquery reinitialization/re-execution, the optimizer reallocates JOIN::join_tab, JOIN::table in make_simple_join() and the local variable in 'sortorder' in create_sort_index(), which is allocated by make_unireg_sortorder(). Care must be taken not to allocate anything into the thread's memory pool while re-initializing query plan structures between subquery re-executions. All such items mush be cached and reused because the thread's memory pool is freed at the end of the whole query. Note that they must be cached and reused even for queries that are not otherwise cacheable because otherwise it will grow the thread's memory pool every time a cacheable query is re-executed. We provide additional members to the JOIN structure to store references to the items that need to be cached. mysql-test/r/subselect.result: Bug#21798: memory leak during query execution with subquery in column list using a function - test case mysql-test/t/subselect.test: Bug#21798: memory leak during query execution with subquery in column list using a function - test case sql/mysql_priv.h: Bug#21798: memory leak during query execution with subquery in column list using a function - cache the entities allocated in the threads memory pool by JOIN::exec (). sql/sql_delete.cc: Bug#21798: memory leak during query execution with subquery in column list using a function - cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's memory pool by JOIN::exec (). sql/sql_select.cc: Bug#21798: memory leak during query execution with subquery in column list using a function - cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's memory pool by JOIN::exec (). sql/sql_select.h: Bug#21798: memory leak during query execution with subquery in column list using a function - cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's memory pool by JOIN::exec (). sql/sql_table.cc: Bug#21798: memory leak during query execution with subquery in column list using a function - cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's memory pool by JOIN::exec (). sql/sql_update.cc: Bug#21798: memory leak during query execution with subquery in column list using a function - cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's memory pool by JOIN::exec ().
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unknown authored
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unknown authored
into macbook.gmz:/Users/kgeorge/mysql/work/B22367-5.0-opt-merge include/my_base.h: Auto merged mysql-test/r/select.result: merge of 5.0-opt to 22367 mysql-test/t/select.test: merge of 5.0-opt to 22367
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- 16 Oct, 2006 8 commits
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unknown authored
account predicates that become sargable after reading const tables. In some cases this resulted in choosing non-optimal execution plans. Now info of such potentially saragable predicates is saved in an array and after reading const tables we check whether this predicates has become saragable. mysql-test/r/select.result: Added a test case for bug #19579. mysql-test/t/select.test: Added a test case for bug #19579. sql/item_cmpfunc.cc: Fixed bug #19579: at range analysis optimizer did not take into account predicates that become sargable after reading const tables. Added a counter of between predicates. sql/sql_base.cc: Fixed bug #19579: at range analysis optimizer did not take into account predicates that become sargable after reading const tables. Added a counter of between predicates. sql/sql_lex.cc: Fixed bug #19579: at range analysis optimizer did not take into account predicates that become sargable after reading const tables. Added a counter of between predicates. sql/sql_lex.h: Fixed bug #19579: at range analysis optimizer did not take into account predicates that become sargable after reading const tables. Added a counter of between predicates. sql/sql_select.cc: Fixed bug #19579: at range analysis optimizer did not take into account predicates that become sargable after reading const tables. Now info of such potentially saragable predicates is saved in an array and after reading const tables we check whether this predicates has become saragable.
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unknown authored
into rakia.(none):/home/kgeorge/mysql/autopush/B22342-5.0-opt sql/opt_range.cc: Auto merged
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unknown authored
When using index for group by and range access the server isolates a set of ranges based on the conditions over the key parts of the index used. Then it uses only the ranges over the GROUP BY fields to jump from one group to another. Since the GROUP BY fields may form a prefix over the index, we may use only a prefix of the ranges produced by the range optimizer. Each range contains a notion on whether it includes its border values. The problem is that when using a range prefix, the last range is open because it assumes that there is a range on the next keypart. Thus when we use a prefix range as it is, it excludes all border values. The solution is when ignoring the suffix of the range conditions (to jump over the GROUP BY prefix only) the server must change the remaining intervals so they always contain their borders, e.g. if the whole range was : (1,-inf) <= (<group_by_col>,<min_max_arg_col>) < (1, 3) we must make (1) <= (<group_by_col>) <= (1) because (a,b) < (c1,c2) means : a < c1 OR (a = c1 AND b < c2). mysql-test/r/group_min_max.result: Bug #22342: No results returned for query using max and group by - test case mysql-test/t/group_min_max.test: Bug #22342: No results returned for query using max and group by - test case sql/opt_range.cc: Bug #22342: No results returned for query using max and group by - open the intervals for prefix select when there are more conditions than used for the prefix search. sql/opt_range.h: Bug #22342: No results returned for query using max and group by - open the intervals for prefix select when there are more conditions than used for the prefix search.
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unknown authored
strings MySQL is setting the flag HA_END_SPACE_KEYS for all the keys that reference text or varchar columns with collation different than binary. This was done to handle correctly the situation where a lookup on such a key may return more than 1 row because of the presence of many rows that differ only by the amount of trailing space in the table's string column. Inserting such values however appears to violate the unique checks on INSERT/UPDATE. Thus that flag must not be set as it will prevent the optimizer from choosing a faster access method. This fix removes the setting of the HA_END_SPACE_KEYS flag. include/my_base.h: Bug #22367: Optimizer uses ref join type instead of eq_ref for simple join on strings - disabled HA_END_SPACE_KEY as it's no longer needed mysql-test/r/func_str.result: Bug #22367: Optimizer uses ref join type instead of eq_ref for simple join on strings - fixed explain in an existing case mysql-test/r/merge.result: Bug #22367: Optimizer uses ref join type instead of eq_ref for simple join on strings - fixed explain in an existing case mysql-test/r/select.result: Bug #22367: Optimizer uses ref join type instead of eq_ref for simple join on strings - test case mysql-test/r/subselect.result: Bug #22367: Optimizer uses ref join type instead of eq_ref for simple join on strings - fixed explain in an existing case mysql-test/t/select.test: Bug #22367: Optimizer uses ref join type instead of eq_ref for simple join on strings - test case
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unknown authored
into macbook.gmz:/Users/kgeorge/mysql/work/B14019-5.0-opt
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unknown authored
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unknown authored
into macbook.gmz:/Users/kgeorge/mysql/work/B14019-5.0-opt mysql-test/r/func_gconcat.result: Auto merged mysql-test/t/func_gconcat.test: Auto merged sql/sql_base.cc: Auto merged mysql-test/r/group_by.result: merge 4.1->5.0 mysql-test/t/group_by.test: merge 4.1->5.0
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unknown authored
When resolving unqualified name references MySQL was not checking what is the item type for the reference. Thus e.g a string literal item that has by convention a name equal to its string value will also work as a reference to a SELECT list item or a table field. Fixed by allowing only Item_ref or Item_field to referenced by (unqualified) name. mysql-test/r/func_gconcat.result: Bug #14019: group by converts literal string to column name - removed undeterministic testcase : order by a constant means no order. mysql-test/r/group_by.result: Bug #14019: group by converts literal string to column name - test case mysql-test/t/func_gconcat.test: Bug #14019: group by converts literal string to column name - removed undeterministic testcase : order by a constant means no order. mysql-test/t/group_by.test: Bug #14019: group by converts literal string to column name - test case sql/sql_base.cc: Bug #14019: group by converts literal string to column name - resolve unqualified by name refs only for real references
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- 13 Oct, 2006 1 commit
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unknown authored
The mysql_alter_table() was able to rename only a table. The view/table renaming code is moved from the function rename_tables to the new function called do_rename(). The mysql_alter_table() function calls it when it needs to rename a view. mysql-test/t/rename.test: Added a test case for bug#14959: ALTER TABLE isn't able to rename a view mysql-test/r/rename.result: Added a test case for bug#14959: ALTER TABLE isn't able to rename a view sql/mysql_priv.h: Bug#14959: ALTER TABLE isn't able to rename a view Added the prototype of the do_rename() function. sql/sql_rename.cc: Bug#14959: ALTER TABLE isn't able to rename a view The view/table renaming code is moved from the function rename_tables to the new function called do_rename(). sql/sql_table.cc: Bug#14959: ALTER TABLE isn't able to rename a view Added handling of a view rename to the mysql_alter_table() function.
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- 11 Oct, 2006 1 commit
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unknown authored
The Cached_item_decimal::cmp() method wasn't checking for null pointer returned from the val_decimal() of the item being cached. This leads to server crash. The Cached_item_decimal::cmp() method now check for null values. sql/item_buff.cc: Bug#22138: Unhandled NULL caused server crash The Cached_item_decimal::cmp() method now check for null values. mysql-test/r/type_decimal.result: Added the test case for bug#22138: Unhandled NULL caused server crash mysql-test/t/type_decimal.test: Added the test case for bug#22138: Unhandled NULL caused server crash
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- 09 Oct, 2006 2 commits
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unknown authored
into macbook.local:/Users/kgeorge/mysql/work/B22781-5.0-opt sql/sql_select.cc: Auto merged
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unknown authored
Currently SQL_BIG_RESULT is checked only at compile time. However, additional optimizations may take place after this check that change the sort method from 'filesort' to sorting via index. As a result the actual plan executed is not the one specified by the SQL_BIG_RESULT hint. Similarly, there is no such test when executing EXPLAIN, resulting in incorrect output. The patch corrects the problem by testing for SQL_BIG_RESULT both during the explain and execution phases. mysql-test/r/bdb.result: Bug #22781: SQL_BIG_RESULT fails to influence sort plan - updated sql_big_result testcase mysql-test/r/group_by.result: Bug #22781: SQL_BIG_RESULT fails to influence sort plan - test case with MyISAM mysql-test/r/innodb.result: Bug #22781: SQL_BIG_RESULT fails to influence sort plan - updated sql_big_result testcase mysql-test/r/innodb_mysql.result: Bug #22781: SQL_BIG_RESULT fails to influence sort plan - test case with InnoDB mysql-test/r/myisam.result: Bug #22781: SQL_BIG_RESULT fails to influence sort plan - updated sql_big_result testcase mysql-test/t/group_by.test: Bug #22781: SQL_BIG_RESULT fails to influence sort plan - test case with MyISAM mysql-test/t/innodb_mysql.test: Bug #22781: SQL_BIG_RESULT fails to influence sort plan - test case with InnoDB sql/sql_select.cc: Bug #22781: SQL_BIG_RESULT fails to influence sort plan - When SQL_BIG_RESULT is specified, disable the optimization performed at execution/explain time that decides to use an index instead of filesort.
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- 01 Oct, 2006 3 commits
- 29 Sep, 2006 7 commits
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unknown authored
into rurik.mysql.com:/home/igor/mysql-5.0-opt mysql-test/r/select.result: Manual merge mysql-test/t/select.test: Manual merge
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unknown authored
into moonbone.local:/work/20503-bug-5.0-mysql sql/sql_select.cc: Auto merged
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unknown authored
into rurik.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug22753
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unknown authored
After the patch for big 21698 equality propagation stopped working for BETWEEN and IN predicates with STRING arguments. This changeset completes the solution of the above patch. mysql-test/r/select.result: Added a test case for bug #22735. mysql-test/t/select.test: Added a test case for bug #22735. sql/item_cmpfunc.h: Fixed bug #22753. After the patch for big 21698 equality propagation stopped working for BETWEEN and IN predicates with STRING arguments. This changeset completes the solution of the above patch. Added an implementation of the subst_argument_checker method for Item_func_opt_neg (the direct ancestor of Item_func_between and Item_func_in) which allows equality propagation for BETWEEN and IN predicates.
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unknown authored
into mysql.com:/home/hf/work/21888/my50-21888 myisam/mi_range.c: Auto merged mysql-test/r/gis-rtree.result: Auto merged mysql-test/t/gis-rtree.test: Auto merged
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unknown authored
RTree keys are really different from BTree and need specific paramters to be set by optimizer to work. Sometimes optimizer doesn't set those properly. Here we decided just to add code to check that the parameters are correct. Hope to fix optimizer sometimes. myisam/mi_range.c: return the error if min_key is NULL mysql-test/r/gis-rtree.result: test result mysql-test/t/gis-rtree.test: test case
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unknown authored
We use the condition from CHECK OPTION twice handling UPDATE command. First we construnct 'update_cond' AND 'option_cond' condition to select records to be updated, then we check the 'option_cond' for the updated row. The problem is that first 'AND' condition is optimized during the 'select' which can break 'option_cond' structure, so it will be unusable for the sectond use - to check the updated row. Possible soultion is either use copy of the condition in the first use or to make optimization less traumatic for the operands. I picked the first one. mysql-test/r/view.result: result fixed mysql-test/t/view.test: testcase sql/table.cc: now we use the copy of the CHECK OPTION condition to construct the select's condition
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- 28 Sep, 2006 7 commits
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unknown authored
After merge fix mysql-test/t/view.test: After merge fix
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unknown authored
into moonbone.local:/work/5505-bug-5.0-opt-mysql sql/share/errmsg.txt: Auto merged sql/sql_base.cc: Auto merged mysql-test/r/view.result: Manual merge mysql-test/t/view.test: Manual merge
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unknown authored
On an INSERT into an updatable but non-insertable view an error message was issued stating the view being not updatable. This can lead to a confusion of a user. A new error message is introduced. Is is showed when a user tries to insert into a non-insertable view. sql/sql_base.cc: Fixed bug#5505: Wrong error message on INSERT into a view The update_non_unique_table_error() function now issues proper error for an INSERT. sql/sql_insert.cc: Fixed bug#5505: Wrong error message on INSERT into a view Issue the ER_NON_INSERTABLE_TABLE error instead of the ER_NON_UPDATABLE_TABLE on insert into a view. sql/sql_view.cc: Fixed bug#5505: Wrong error message on INSERT into a view Issue the ER_NON_INSERTABLE_TABLE error instead of the ER_NON_UPDATABLE_TABLE on insert into a view. mysql-test/r/view.result: Added the test case for bug#5505: Wrong error message on INSERT into a view Corrected a few test cases after fixing bug#5505 mysql-test/t/view.test: Added the test case for bug#5505: Wrong error message on INSERT into a view Corrected a few test cases after fixing bug#5505 sql/share/errmsg.txt: Fixed bug#5505: Wrong error message on INSERT into a view Added the ER_NON_INSERTABLE_TABLE error definition.
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unknown authored
while space allocation Under some circumstances DISTINCT clause can be converted to grouping. In such cases grouping is performed by all items in the select list. If an ORDER clause is present then items from it is prepended to group list. But the case with ORDER wasn't taken into account when allocating the array for sum functions. This leads to memory corruption and crash. The JOIN::alloc_func_list() function now allocates additional space if there is an ORDER by clause is specified and DISTINCT -> GROUP BY optimization is possible. mysql-test/t/select.test: Added the test case for bug#20503: Server crash due to the ORDER clause not taken into account while space allocation mysql-test/r/select.result: Added the test case for bug#20503: Server crash due to the ORDER clause not taken into account while space allocation sql/sql_select.cc: Fixed bug#20503: Server crash due to the ORDER clause not taken into account while space allocation The JOIN::alloc_func_list() function now allocates additional space if there is an ORDER by clause is specified and DISTINCT -> GROUP BY optimization is possible.
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unknown authored
into dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.0-opt sql/sql_select.cc: Auto merged
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unknown authored
into dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.0-opt mysql-test/r/view.result: Auto merged mysql-test/t/view.test: Auto merged sql/mysql_priv.h: Auto merged sql/sql_select.cc: Auto merged sql/sql_yacc.yy: Auto merged
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unknown authored
into dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-4.1-opt sql/sql_select.cc: Auto merged
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- 27 Sep, 2006 4 commits
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unknown authored
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unknown authored
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unknown authored
into mysql.com:/home/gluh/MySQL/Merge/5.0 sql/sql_parse.cc: Auto merged sql-common/client.c: Auto merged sql/table.cc: Auto merged include/mysql_com.h: manual merge mysql-test/r/ctype_utf8.result: manual merge mysql-test/t/ctype_utf8.test: manual merge sql/sql_acl.cc: manual merge
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unknown authored
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