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authorSergei Golubchik <serg@mariadb.org>2014-10-16 00:30:29 +0200
committerSergei Golubchik <serg@mariadb.org>2014-10-16 00:30:29 +0200
commit1e79138459038c39c85239a825bf1727ef43c156 (patch)
tree88f725551c0f061487fde0ee5a6c0ea471b24abc /mysql-test/t/union.test
parent7aed441963823191e94da3df069e123dc8794eee (diff)
parent42f359f9827340bf430a9f1a0bda9b059951ea08 (diff)
downloadmariadb-git-1e79138459038c39c85239a825bf1727ef43c156.tar.gz
Merge branch 'bb-10.1-merge' into 10.1mariadb-10.1.1
Diffstat (limited to 'mysql-test/t/union.test')
-rw-r--r--mysql-test/t/union.test30
1 files changed, 30 insertions, 0 deletions
diff --git a/mysql-test/t/union.test b/mysql-test/t/union.test
index 057c90b7c41..8d10c3d64ea 100644
--- a/mysql-test/t/union.test
+++ b/mysql-test/t/union.test
@@ -1269,6 +1269,36 @@ 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;
+
+--echo #
+--echo # Bug #17059925 : UNIONS COMPUTES ROWS_EXAMINED INCORRECTLY
+--echo #
+
+## Save current state of slow log variables
+SET @old_slow_query_log= @@global.slow_query_log;
+SET @old_log_output= @@global.log_output;
+SET @old_long_query_time= @@long_query_time;
+SET GLOBAL log_output= "TABLE";
+SET GLOBAL slow_query_log= ON;
+SET SESSION long_query_time= 0;
+
+CREATE TABLE t17059925 (a INT);
+CREATE TABLE t2 (b INT);
+CREATE TABLE t3 (c INT);
+INSERT INTO t17059925 VALUES (1), (2), (3);
+INSERT INTO t2 VALUES (4), (5), (6);
+INSERT INTO t3 VALUES (7), (8), (9);
+TRUNCATE table mysql.slow_log;
+--sorted_result
+SELECT * FROM t17059925 UNION SELECT * FROM t2 UNION SELECT * FROM t3;
+SELECT sql_text, rows_examined FROM mysql.slow_log WHERE sql_text LIKE '%SELECT%t17059925%';
+DROP TABLE t17059925, t2, t3;
+
+## Reset to initial values
+SET @@long_query_time= @old_long_query_time;
+SET @@global.log_output= @old_log_output;
+SET @@global.slow_query_log= @old_slow_query_log;
+
--echo #
--echo # lp:1010729: Unexpected syntax error from UNION
--echo # (bug #54382) with single-table join nest