Commit 4ac230e5 authored by Sergey Petrunya's avatar Sergey Petrunya

Better comments

parent f92cfdb8
......@@ -2377,7 +2377,8 @@ Item_in_subselect::select_in_like_transformer(JOIN *join)
object, but we can't know it here, but here we need address correct
reference on left expresion.
//psergey: he means degenerate cases like "... IN (SELECT 1)"
note: we won't need Item_in_optimizer when handling degenerate cases
like "... IN (SELECT 1)"
*/
if (!optimizer)
{
......
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