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Fix for BUG#13549 "Server crash with nested stored procedures

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if inner routine has more local variables than outer one, and
one of its last variables was used as argument to NOT operator".

THD::spcont was non-0 when we were parsing stored routine/trigger
definition during execution of another stored routine. This confused
methods of Item_splocal and forced them use wrong runtime context.
Fix ensures that we always have THD::spcont equal to zero during
routine/trigger body parsing. This also allows to avoid problems
with errors which occur during parsing and SQL exception handlers.
This commit is contained in:
bell@sanja.is.com.ua
2005-11-23 00:50:37 +02:00
parent debff3e632
commit 2bcd68973b
16 changed files with 178 additions and 27 deletions
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8
sql/sql_class.cc
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@ -1490,7 +1490,13 @@ int select_dumpvar::prepare(List<Item> &list, SELECT_LEX_UNIT *u)
{
my_var *mv= gl++;
if (mv->local)
(void)local_vars.push_back(new Item_splocal(mv->s, mv->offset));
{
Item_splocal *var;
(void)local_vars.push_back(var= new Item_splocal(mv->s, mv->offset));
#ifndef DEBUG_OFF
var->owner= mv->owner;
#endif
}
else
{
Item_func_set_user_var *var= new Item_func_set_user_var(mv->s, item);