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Merge 10.3 into 10.4

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This commit is contained in:
Marko Mäkelä
2022-03-29 11:13:18 +03:00
parent 97f237e66d 020e7d89eb
commit ae6e214fd8
66 changed files with 1972 additions and 197 deletions
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27
sql/sql_tvc.cc
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@ -899,8 +899,6 @@ Item *Item_func_in::in_predicate_to_in_subs_transformer(THD *thd,
if (!transform_into_subq)
return this;
transform_into_subq= false;
List<List_item> values;
LEX *lex= thd->lex;
@ -1057,15 +1055,38 @@ uint32 Item_func_in::max_length_of_left_expr()
bool Item_func_in::to_be_transformed_into_in_subq(THD *thd)
{
bool is_row_list= args[1]->type() == Item::ROW_ITEM;
uint values_count= arg_count-1;
if (args[1]->type() == Item::ROW_ITEM)
if (is_row_list)
values_count*= ((Item_row *)(args[1]))->cols();
if (thd->variables.in_subquery_conversion_threshold == 0 ||
thd->variables.in_subquery_conversion_threshold > values_count)
return false;
if (!(thd->lex->context_analysis_only & CONTEXT_ANALYSIS_ONLY_PREPARE))
return true;
/* Occurence of '?' in IN list is checked only for PREPARE <stmt> commands */
for (uint i=1; i < arg_count; i++)
{
if (!is_row_list)
{
if (args[i]->type() == Item::PARAM_ITEM)
return false;
}
else
{
Item_row *row_list= (Item_row *)(args[i]);
for (uint j=0; j < row_list->cols(); j++)
{
if (row_list->element_index(j)->type() == Item::PARAM_ITEM)
return false;
}
}
}
return true;
}