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Moving a change_list related methods from THD to Item_change_list

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1. Moving the following methods from THD to Item_change_list:
   nocheck_register_item_tree_change()
   check_and_register_item_tree_change()
   rollback_item_tree_changes()
   as they work only with the "change_list" member and don't
   require anything else from THD.
2. Deriving THD from Item_change_list

This change will help to fix "MDEV-14603 signal 11 with short stacktrace" easier.
This commit is contained in:
Alexander Barkov
2018-01-16 16:09:51 +04:00
parent be85c2dc88
commit 81378b3947
5 changed files with 41 additions and 28 deletions
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2
sql/sql_parse.cc
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@ -7910,7 +7910,7 @@ void mysql_parse(THD *thd, char *rawbuf, uint length,
sp_cache_enforce_limit(thd->sp_func_cache, stored_program_cache_size);
thd->end_statement();
thd->cleanup_after_query();
DBUG_ASSERT(thd->change_list.is_empty());
DBUG_ASSERT(thd->Item_change_list::is_empty());
}
else
{