Merge olga.mysql.com:/home/igor/dev-opt/mysql-4.1-opt-bug29911

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug29911


mysql-test/t/having.test:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/r/having.result:
  SCCS merged

1 files changed, 26 insertions, 0 deletions

diff --git a/mysql-test/t/having.test b/mysql-test/t/having.test
index 9bea78a7bca..827b83f11a0 100644
--- a/mysql-test/t/having.test
+++ b/mysql-test/t/having.test
@@ -151,6 +151,32 @@ EXPLAIN SELECT 0 AS x, a FROM t1 GROUP BY x,a HAVING x=1 AND a > 1;
 
 DROP table t1;  
 
+#
+# Bug #29911: HAVING clause depending on constant table and evaluated to false
+#
+
+CREATE TABLE t1 (a int PRIMARY KEY);
+CREATE TABLE t2 (b int PRIMARY KEY, a int);
+CREATE TABLE t3 (b int, flag int);
+
+INSERT INTO t1 VALUES (1);
+INSERT INTO t2 VALUES (1,1), (2,1), (3,1);
+INSERT INTO t3(b,flag) VALUES (2, 1);
+
+SELECT t1.a
+  FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b
+    GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0;
+
+SELECT DISTINCT t1.a, MAX(t3.flag)
+  FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b
+    GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0;
+
+SELECT DISTINCT t1.a
+  FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b
+    GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0;
+
+DROP TABLE t1,t2,t3;
+
 # End of 4.1 tests
 
 #