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The problematic queries involve unions. For unions we have an optimization where we skip the ORDER BY clause in a query from one side of the union if it will be performed later due to UNION. EX: (SELECT a from t1 ORDER BY a) ORDER BY b; The first ordering by a is not necessary and it gets removed. The problem is that we still need to resolve the Items before removing the ORDER BY list from the SELECT_LEX structure. During this final resolve step however, we forgot to allow SET functions within the ORDER BY clause. This caused us to return an "Invalid use of group function" error during the checking performed by fix_fields in Item_sum::init_sum_func_check.
127 lines
2.5 KiB
Text
127 lines
2.5 KiB
Text
#
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# MariaDB does not support group functions in some contexts where MySQL does
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#
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CREATE TABLE t1 (a INT);
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INSERT INTO t1 VALUES (10),(20),(30);
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# All these queries must pass, not returning "Invalid use of group function".
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(SELECT a FROM t1 GROUP BY a ORDER BY GROUP_CONCAT(a));
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a
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10
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20
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30
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(SELECT a FROM t1 GROUP BY a ORDER BY GROUP_CONCAT(a)) LIMIT 1;
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a
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10
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(SELECT a FROM t1 GROUP BY a ORDER BY a,GROUP_CONCAT(a));
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a
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10
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20
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30
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(SELECT a FROM t1 GROUP BY a ORDER BY a,GROUP_CONCAT(a)) LIMIT 1;
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a
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10
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(SELECT a FROM t1 GROUP BY a ORDER BY GROUP_CONCAT(a)) ORDER BY a;
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a
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10
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20
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30
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(SELECT a FROM t1 GROUP BY a ORDER BY GROUP_CONCAT(a)) ORDER BY a LIMIT 1;
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a
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10
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(SELECT a FROM t1 GROUP BY a ORDER BY a,GROUP_CONCAT(a)) ORDER BY a;
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a
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10
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20
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30
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(SELECT a FROM t1 GROUP BY a ORDER BY a,GROUP_CONCAT(a)) ORDER BY a LIMIT 1;
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a
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10
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY GROUP_CONCAT(a));
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a
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1
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10
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20
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30
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY GROUP_CONCAT(a)) LIMIT 1;
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a
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1
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY GROUP_CONCAT(a)) ORDER BY a;
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a
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1
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10
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20
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30
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY GROUP_CONCAT(a)) ORDER BY a LIMIT 1;
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a
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1
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY a,GROUP_CONCAT(a));
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a
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1
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10
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20
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30
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY a,GROUP_CONCAT(a)) LIMIT 1;
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a
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1
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY a,GROUP_CONCAT(a)) ORDER BY a;
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a
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1
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10
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20
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30
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY a,GROUP_CONCAT(a)) ORDER BY a LIMIT 1;
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a
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1
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(SELECT a FROM t1 GROUP BY a ORDER BY MAX(a)) ORDER BY a;
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a
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10
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20
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30
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(SELECT a FROM t1 GROUP BY a ORDER BY MAX(a)) ORDER BY a LIMIT 1;
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a
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10
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(SELECT a FROM t1 GROUP BY a ORDER BY a,MAX(a)) ORDER BY a;
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a
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10
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20
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30
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(SELECT a FROM t1 GROUP BY a ORDER BY a,MAX(a)) ORDER BY a LIMIT 1;
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a
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10
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY MAX(a));
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a
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1
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10
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20
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30
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY MAX(a)) LIMIT 1;
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a
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1
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY MAX(a)) ORDER BY a;
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a
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1
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10
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20
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30
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY MAX(a)) ORDER BY a LIMIT 1;
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a
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1
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY a,MAX(a));
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a
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1
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10
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20
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30
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY a,MAX(a)) LIMIT 1;
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a
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1
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY a,MAX(a)) ORDER BY a;
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a
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1
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10
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20
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30
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SELECT 1 AS a UNION (SELECT a FROM t1 GROUP BY a ORDER BY a,MAX(a)) ORDER BY a LIMIT 1;
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a
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1
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drop table t1;
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