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Bug #27084 partitioning by list seems failing when using case

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creation of the partitioned table could fail as we created Item-s for
it's list function in thd->mem_root, and then do Item->fix_fields
in the context of other table->mem_root (so that memory alloced
there was alloced in this table->mem_root). As we freed the
table->mem_root before we do thd->free_items, our Item-s had
pointers to the freed memory, that caused the crash


mysql-test/r/partition.result:
  result
mysql-test/t/partition.test:
  testcase
sql/item_cmpfunc.cc:
  here is better place for the implementation
sql/item_cmpfunc.h:
  implementation moved to .cc file
sql/sql_partition.cc:
  work_part_info_used parameter added to mysql_unpack_partition
sql/sql_partition.h:
  work_part_info_used parameter added to mysql_unpack_partition
sql/table.cc:
  we do 'fix_partition_func' using the proper arena now.
  It's necessary as Item_*::fix_fields can alloc memory
  using thd->mem_root and this has to be same mem_root that
  we used to alloc these Item-s
This commit is contained in:
unknown
2007-03-27 16:15:38 +05:00
parent 7bc013444a
commit 50563d3930
7 changed files with 60 additions and 16 deletions
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3
sql/sql_partition.h
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@@ -81,7 +81,8 @@ bool mysql_unpack_partition(THD *thd, const uchar *part_buf,
uint part_info_len,
uchar *part_state, uint part_state_len,
TABLE *table, bool is_create_table_ind,
handlerton *default_db_type);
handlerton *default_db_type,
bool *work_part_info_used);
void make_used_partitions_str(partition_info *part_info, String *parts_str);
uint32 get_list_array_idx_for_endpoint(partition_info *part_info,
bool left_endpoint,