MWL#17: Table elimination
- When collecting Item_subselect::refers_to, put references to the correct subselect entry.
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@ -1780,6 +1780,7 @@ void st_select_lex_unit::exclude_tree()
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void st_select_lex::mark_as_dependent(st_select_lex *last, Item *dependency)
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{
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SELECT_LEX *next_to_last;
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/*
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Mark all selects from resolved to 1 before select where was
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found table as depended (of select where was found table)
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@ -1787,6 +1788,7 @@ void st_select_lex::mark_as_dependent(st_select_lex *last, Item *dependency)
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for (SELECT_LEX *s= this;
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s && s != last;
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s= s->outer_select())
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{
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if (!(s->uncacheable & UNCACHEABLE_DEPENDENT))
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{
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// Select is dependent of outer select
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@ -1802,10 +1804,12 @@ void st_select_lex::mark_as_dependent(st_select_lex *last, Item *dependency)
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sl->uncacheable|= UNCACHEABLE_UNITED;
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}
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}
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next_to_last= s;
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}
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is_correlated= TRUE;
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this->master_unit()->item->is_correlated= TRUE;
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if (dependency)
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this->master_unit()->item->refers_to.push_back(dependency);
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next_to_last->master_unit()->item->refers_to.push_back(dependency);
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}
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bool st_select_lex_node::set_braces(bool value) { return 1; }
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