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Handle failures from malloc

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Most "new" failures fixed in the following files:
- sql_select.cc
- item.cc
- item_func.cc
- opt_subselect.cc

Other things:
- Allocate udf_handler strings in mem_root
  - Required changes in sql_string.h
- Add mem_root as argument to some new [] calls
- Mark udf_handler strings as thread specific
- Removed some comment blocks with code
This commit is contained in:
Michael Widenius
2017-11-14 07:47:58 +02:00
parent 31bd86c8df
commit 87933d5261
21 changed files with 394 additions and 210 deletions
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2
sql/sql_table.cc
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@@ -9697,7 +9697,7 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
if (mysql_trans_prepare_alter_copy_data(thd))
DBUG_RETURN(-1);
if (!(copy= new Copy_field[to->s->fields]))
if (!(copy= new (thd->mem_root) Copy_field[to->s->fields]))
DBUG_RETURN(-1); /* purecov: inspected */
/* We need external lock before we can disable/enable keys */