Fixed bug #665049.

The bug could cause wrong results for queries over Maria tables when
index condition pushdown was used.

1 files changed, 57 insertions, 0 deletions

diff --git a/mysql-test/t/maria_mrr.test b/mysql-test/t/maria_mrr.test
new file mode 100644
index 00000000000..a4bb8eb9f9e
--- /dev/null
+++ b/mysql-test/t/maria_mrr.test
@@ -0,0 +1,57 @@
+-- source include/have_maria.inc
+
+--disable_warnings
+drop table if exists t1,t2,t3,t4;
+--enable_warnings
+
+set @save_storage_engine= @@storage_engine;
+set storage_engine=aria;
+
+--source include/mrr_tests.inc 
+
+set storage_engine= @save_storage_engine;
+
+#
+# Bug #665049:  index condition pushdown with Maria 
+#
+
+CREATE TABLE t1(
+  pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
+  PRIMARY KEY (pk), INDEX idx (v, i)
+) ENGINE=ARIA;
+INSERT INTO t1 VALUES 
+  (1,9,'x'), (2,5,'g'), (3,1,'o'), (4,0,'g'), (5,1,'v'),
+  (6,190,'m'), (7,6,'x'), (8,3,'c'), (9,4,'z'), (10,3,'i'),
+  (11,186,'x'), (12,1,'g'), (13,8,'q'), (14,226,'m'), (15,133,'p');
+
+CREATE TABLE t2(
+  pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
+  PRIMARY KEY (pk), INDEX idx (v, i)
+) ENGINE=ARIA;
+INSERT INTO t2 SELECT * FROM t1;
+INSERT INTO t2 VALUES (77, 333, 'z');
+
+CREATE TABLE t3(
+  pk int NOT NULL, i int NOT NULL, v varchar(1) NOT NULL,
+  PRIMARY KEY (pk), INDEX idx (v, i)
+) ENGINE=ARIA;
+INSERT INTO t3 SELECT * FROM t1;
+INSERT INTO t3 VALUES (88, 442, 'y'), (99, 445, 'w') ;
+
+SELECT COUNT(t1.v) FROM t1, t2 IGNORE INDEX (idx), t3 IGNORE INDEX (idx)
+  WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
+EXPLAIN 
+SELECT COUNT(t1.v) FROM t1, t2 IGNORE INDEX (idx), t3 IGNORE INDEX (idx)
+  WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
+
+SELECT COUNT(t1.v) FROM t1, t2, t3 
+  WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
+EXPLAIN 
+  SELECT COUNT(t1.v) FROM t1, t2, t3
+  WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
+
+DROP TABLE t1,t2,t3;
+
+
+
+