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MDEV-11953: support of brackets in UNION/EXCEPT/INTERSECT operations

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This commit is contained in:
Oleksandr Byelkin
2018-05-22 19:08:39 +02:00
parent 1b981b9edb
commit de745ecf29
298 changed files with 36118 additions and 3473 deletions
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24
sql/sql_cte.cc
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@ -55,6 +55,14 @@ bool With_clause::add_with_element(With_element *elem)
}
void st_select_lex_unit::set_with_clause(With_clause *with_cl)
{
with_clause= with_cl;
if (with_clause)
with_clause->set_owner(this);
}
/**
@brief
Check dependencies between tables defined in a list of with clauses
@ -682,7 +690,7 @@ void With_element::move_anchors_ahead()
{
st_select_lex *next_sl;
st_select_lex *new_pos= spec->first_select();
new_pos->linkage= UNION_TYPE;
new_pos->set_linkage(UNION_TYPE);
for (st_select_lex *sl= new_pos; sl; sl= next_sl)
{
next_sl= sl->next_select();
@ -691,9 +699,9 @@ void With_element::move_anchors_ahead()
sl->move_node(new_pos);
if (new_pos == spec->first_select())
{
enum sub_select_type type= new_pos->linkage;
new_pos->linkage= sl->linkage;
sl->linkage= type;
enum sub_select_type type= new_pos->get_linkage();
new_pos->set_linkage(sl->get_linkage());
sl->set_linkage(type);
new_pos->with_all_modifier= sl->with_all_modifier;
sl->with_all_modifier= false;
}
@ -834,9 +842,8 @@ st_select_lex_unit *With_element::clone_parsed_spec(THD *thd,
goto err;
lex_start(thd);
lex->stmt_lex= old_lex;
with_select= &lex->select_lex;
with_select->select_number= ++thd->lex->stmt_lex->current_select_number;
parse_status= parse_sql(thd, &parser_state, 0);
with_select= lex->first_select_lex();
if (parse_status)
goto err;
@ -987,7 +994,7 @@ bool With_element::prepare_unreferenced(THD *thd)
rename_columns_of_derived_unit(thd, spec) ||
check_duplicate_names(thd, first_sl->item_list, 1)))
rc= true;
thd->lex->context_analysis_only&= ~CONTEXT_ANALYSIS_ONLY_DERIVED;
return rc;
}
@ -1098,7 +1105,8 @@ bool TABLE_LIST::set_as_with_table(THD *thd, With_element *with_elem)
if(!(derived= with_elem->clone_parsed_spec(thd, this)))
return true;
}
derived->first_select()->linkage= DERIVED_TABLE_TYPE;
derived->first_select()->set_linkage(DERIVED_TABLE_TYPE);
select_lex->add_statistics(derived);
with_elem->inc_references();
return false;
}