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fix(dbcon) MCOL-5812 server crash related to stored functions

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Using the stored function's return value as an argument
for another function was handled incorrectly, leading
to a server crash.
This commit is contained in:
Aleksei Antipovskii
2024-10-18 19:13:47 +02:00
committed by Leonid Fedorov
parent bd9dfdf38c
commit 42be2cb7e0
3 changed files with 327 additions and 0 deletions
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4
dbcon/mysql/ha_mcs_pushdown.cpp
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@ -364,6 +364,10 @@ void item_check(Item* item, bool* unsupported_feature)
bool check_user_var(SELECT_LEX* select_lex)
{
if (!select_lex) {
// There are definitely no user vars if select_lex is null
return false;
}
List_iterator_fast<Item> it(select_lex->item_list);
Item* item;
bool is_user_var_func = false;