diff --git a/mysql-test/r/union.result b/mysql-test/r/union.result index 7f0ec2275d7..1f3422c1767 100644 --- a/mysql-test/r/union.result +++ b/mysql-test/r/union.result @@ -1744,3 +1744,28 @@ ORDER BY c2 DESC, c1 ASC LIMIT 1 c1 c2 t1a 3 DROP TABLE t1, t2; +# +# Bug #58970 Problem Subquery (without referencing a table) +# and Order By +# +SELECT(SELECT 0 AS a UNION SELECT 1 AS a ORDER BY a ASC LIMIT 1) AS dev; +dev +0 +SELECT(SELECT 0 AS a UNION SELECT 1 AS a ORDER BY a DESC LIMIT 1) AS dev; +dev +1 +SELECT(SELECT 0 AS a FROM dual UNION SELECT 1 AS a FROM dual ORDER BY a ASC LIMIT 1) AS dev; +dev +0 +SELECT(SELECT 0 AS a FROM dual UNION SELECT 1 AS a FROM dual ORDER BY a DESC LIMIT 1) AS dev; +dev +1 +SELECT(SELECT 1 AS a ORDER BY a) AS dev; +dev +1 +SELECT(SELECT 1 AS a LIMIT 1) AS dev; +dev +1 +SELECT(SELECT 1 AS a FROM dual ORDER BY a DESC LIMIT 1) AS dev; +dev +1 diff --git a/mysql-test/t/union.test b/mysql-test/t/union.test index 694f1bab15c..c6599517e90 100644 --- a/mysql-test/t/union.test +++ b/mysql-test/t/union.test @@ -1171,3 +1171,16 @@ SELECT c1, c2 FROM ( ) AS res; DROP TABLE t1, t2; + +--echo # +--echo # Bug #58970 Problem Subquery (without referencing a table) +--echo # and Order By +--echo # + +SELECT(SELECT 0 AS a UNION SELECT 1 AS a ORDER BY a ASC LIMIT 1) AS dev; +SELECT(SELECT 0 AS a UNION SELECT 1 AS a ORDER BY a DESC LIMIT 1) AS dev; +SELECT(SELECT 0 AS a FROM dual UNION SELECT 1 AS a FROM dual ORDER BY a ASC LIMIT 1) AS dev; +SELECT(SELECT 0 AS a FROM dual UNION SELECT 1 AS a FROM dual ORDER BY a DESC LIMIT 1) AS dev; +SELECT(SELECT 1 AS a ORDER BY a) AS dev; +SELECT(SELECT 1 AS a LIMIT 1) AS dev; +SELECT(SELECT 1 AS a FROM dual ORDER BY a DESC LIMIT 1) AS dev; diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy index c283747156a..397afd26d8d 100644 --- a/sql/sql_yacc.yy +++ b/sql/sql_yacc.yy @@ -13914,7 +13914,7 @@ query_specification: ; query_expression_body: - query_specification + query_specification opt_union_order_or_limit | query_expression_body UNION_SYM union_option { @@ -13922,6 +13922,7 @@ query_expression_body: MYSQL_YYABORT; } query_specification + opt_union_order_or_limit { Lex->pop_context(); $$= $1;