1 files changed, 117 insertions, 0 deletions
diff --git a/mysql-test/t/group_by.test b/mysql-test/t/group_by.test
index 3211db5d6ed..d02e8e10a2b 100644
--- a/mysql-test/t/group_by.test
+++ b/mysql-test/t/group_by.test
@@ -823,6 +823,123 @@ SELECT * FROM t1 GROUP BY c2  ORDER BY c2 DESC, c1 DESC;
 DROP TABLE t1;
 
 
+--echo #
+--echo # Bug#27219: Aggregate functions in ORDER BY.  
+--echo #
+SET @save_sql_mode=@@sql_mode;
+SET @@sql_mode='ONLY_FULL_GROUP_BY';
+
+CREATE TABLE t1 (a INT, b INT, c INT DEFAULT 0);
+INSERT INTO t1 (a, b) VALUES (3,3), (2,2), (3,3), (2,2), (3,3), (4,4);
+CREATE TABLE t2 SELECT * FROM t1;
+
+SELECT 1 FROM t1 ORDER BY COUNT(*);
+SELECT 1 FROM t1 ORDER BY COUNT(*) + 1;
+--error 1140
+SELECT 1 FROM t1 ORDER BY COUNT(*) + a;
+SELECT 1 FROM t1 ORDER BY COUNT(*), 1;
+--error 1140
+SELECT 1 FROM t1 ORDER BY COUNT(*), a;
+
+SELECT 1 FROM t1 ORDER BY SUM(a);
+SELECT 1 FROM t1 ORDER BY SUM(a + 1);
+SELECT 1 FROM t1 ORDER BY SUM(a) + 1;
+--error 1140
+SELECT 1 FROM t1 ORDER BY SUM(a), b;
+
+--error 1140
+SELECT a FROM t1 ORDER BY COUNT(b);
+
+SELECT t1.a FROM t1 ORDER BY (SELECT SUM(t2.a) FROM t2);
+
+--error 1140
+SELECT t1.a FROM t1 ORDER BY (SELECT SUM(t2.a), t2.a FROM t2);
+--error 1140
+SELECT t1.a FROM t1 ORDER BY (SELECT SUM(t2.a) FROM t2 ORDER BY t2.a);
+--error 1140
+SELECT t1.a FROM t1 ORDER BY (SELECT t2.a FROM t2 ORDER BY SUM(t2.b) LIMIT 1);
+
+--error 1140
+SELECT t1.a FROM t1
+  WHERE t1.a = (SELECT t2.a FROM t2 ORDER BY SUM(t2.b) LIMIT 1);
+--error 1140
+SELECT t1.a FROM t1 GROUP BY t1.a
+  HAVING t1.a = (SELECT t2.a FROM t2 ORDER BY SUM(t2.a) LIMIT 1);
+
+SELECT t1.a FROM t1 GROUP BY t1.a
+  HAVING t1.a IN (SELECT t2.a FROM t2 ORDER BY SUM(t1.b));
+--error 1140
+SELECT t1.a FROM t1 GROUP BY t1.a
+  HAVING t1.a IN (SELECT t2.a FROM t2 ORDER BY t2.a, SUM(t2.b));
+--error 1140
+SELECT t1.a FROM t1 GROUP BY t1.a
+  HAVING t1.a > ANY (SELECT t2.a FROM t2 ORDER BY t2.a, SUM(t2.b));
+
+--error 1140
+SELECT t1.a FROM t1
+  WHERE t1.a = (SELECT t2.a FROM t2 ORDER BY SUM(t1.b));
+
+SELECT 1 FROM t1 GROUP BY t1.a
+  HAVING (SELECT AVG(SUM(t1.b) + 1) FROM t2 ORDER BY SUM(t2.a) LIMIT 1);
+SELECT 1 FROM t1 GROUP BY t1.a
+  HAVING (SELECT AVG(SUM(t1.b) + t2.b) FROM t2 ORDER BY SUM(t2.a) LIMIT 1);
+SELECT 1 FROM t1 GROUP BY t1.a
+  HAVING (SELECT AVG(t1.b + t2.b) FROM t2 ORDER BY SUM(t2.a) LIMIT 1);
+
+--error 1140
+SELECT 1 FROM t1 GROUP BY t1.a
+  HAVING (SELECT AVG(SUM(t1.b) + 1) FROM t2 ORDER BY t2.a LIMIT 1);
+--error 1140
+SELECT 1 FROM t1 GROUP BY t1.a
+  HAVING (SELECT AVG(SUM(t1.b) + t2.b) FROM t2 ORDER BY t2.a LIMIT 1);
+--error 1140
+SELECT 1 FROM t1 GROUP BY t1.a
+  HAVING (SELECT AVG(t1.b + t2.b) FROM t2 ORDER BY t2.a LIMIT 1);
+
+# Both SUMs are aggregated in the subquery, no mixture:
+SELECT t1.a FROM t1 
+  WHERE t1.a = (SELECT t2.a FROM t2 GROUP BY t2.a
+                  ORDER BY SUM(t2.b), SUM(t1.b) LIMIT 1);
+
+# SUM(t1.b) is aggregated in the subquery, no mixture:
+SELECT t1.a, SUM(t1.b) FROM t1 
+  WHERE t1.a = (SELECT SUM(t2.b) FROM t2 GROUP BY t2.a
+                  ORDER BY SUM(t2.b), SUM(t1.b) LIMIT 1)
+  GROUP BY t1.a;
+
+# 2nd SUM(t1.b) is aggregated in the subquery, no mixture:
+SELECT t1.a, SUM(t1.b) FROM t1 
+  WHERE t1.a = (SELECT SUM(t2.b) FROM t2
+                  ORDER BY SUM(t2.b) + SUM(t1.b) LIMIT 1)
+  GROUP BY t1.a;
+
+# SUM(t2.b + t1.a) is aggregated in the subquery, no mixture:
+SELECT t1.a, SUM(t1.b) FROM t1 
+  WHERE t1.a = (SELECT SUM(t2.b) FROM t2
+                  ORDER BY SUM(t2.b + t1.a) LIMIT 1)
+  GROUP BY t1.a;
+
+SELECT t1.a FROM t1 GROUP BY t1.a
+    HAVING (1, 1) = (SELECT SUM(t1.a), t1.a FROM t2 LIMIT 1);
+
+select avg (
+  (select
+    (select sum(outr.a + innr.a) from t1 as innr limit 1) as tt
+   from t1 as outr order by outr.a limit 1))
+from t1 as most_outer;
+
+--error 1140
+select avg (
+  (select (
+    (select sum(outr.a + innr.a) from t1 as innr limit 1)) as tt
+   from t1 as outr order by count(outr.a) limit 1)) as tt
+from t1 as most_outer;
+
+select (select sum(outr.a + t1.a) from t1 limit 1) as tt from t1 as outr order by outr.a;
+
+SET sql_mode=@save_sql_mode;
+DROP TABLE t1, t2;
+
 --echo End of 5.0 tests
 # Bug #21174: Index degrades sort performance and 
 #             optimizer does not honor IGNORE INDEX.