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A number of after-merge fixes following merge of MySQL 5.1.44 into MariaDB.

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Bug#46949: memory leak with failed alter table to create partitions based on extract()

Bug#51830: Incorrect partition pruning on range partition (regression)

Fixed valgrind failure in select_describe(), read of uninitialized 
  Item_subselect::eliminated.

PBXT test file updates to reflect changes done in MySQL.

mysql-test/suite/pbxt/r/partition_error.result:
  Result file update following MySQL 5.1.44 changes.
mysql-test/suite/pbxt/r/partition_pruning.result:
  Result file update following MySQL 5.1.44 changes.
mysql-test/suite/pbxt/t/partition_error.test:
  Test file update following MySQL 5.1.44 changes.
sql/item_subselect.cc:
    Fixed valgrind failure in select_describe(), read of uninitialized 
    Item_subselect::eliminated: 
    - it turns out we can call select_describe() without having fixed 
      subquery items for child subselects. These are not the kind of subqueries
      that we could eliminate, so the fix is to ensure that 
      item_subselect->eliminated==FALSE even before fix_fields is called.
      Also added code to reset item_subselect->eliminated back to FALSE in
      Item::reset() call.
sql/item_subselect.h:
    Fixed valgrind failure in select_describe(), read of uninitialized 
    Item_subselect::eliminated: 
    - it turns out we can call select_describe() without having fixed 
      subquery items for child subselects. These are not the kind of subqueries
      that we could eliminate, so the fix is to ensure that 
      item_subselect->eliminated==FALSE even before fix_fields is called.
      Also added code to reset item_subselect->eliminated back to FALSE in
      Item::reset() call.
sql/sql_partition.cc:
  Fix Bug#51830: Revert part of the patch for Bug#49742, which caused the regression.
sql/table.cc:
  Fix Bug#46949: memory leak in failed ALTER TABLE with partitioning.
This commit is contained in:
unknown
2010-03-09 16:03:54 +01:00
parent 4bf849c23c
commit c9dffa993a
7 changed files with 22 additions and 16 deletions
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2
sql/table.cc
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@ -1847,8 +1847,8 @@ int open_table_from_share(THD *thd, TABLE_SHARE *share, const char *alias,
{
if (work_part_info_used)
tmp= fix_partition_func(thd, outparam, is_create_table);
outparam->part_info->item_free_list= part_func_arena.free_list;
}
outparam->part_info->item_free_list= part_func_arena.free_list;
partititon_err:
if (tmp)
{