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-rw-r--r--mysql-test/main/index_merge_myisam.test4
1 files changed, 3 insertions, 1 deletions
diff --git a/mysql-test/main/index_merge_myisam.test b/mysql-test/main/index_merge_myisam.test
index 0b0d8d60c15..b77c9bc1ca2 100644
--- a/mysql-test/main/index_merge_myisam.test
+++ b/mysql-test/main/index_merge_myisam.test
@@ -236,9 +236,11 @@ INSERT INTO t1 VALUES
ALTER TABLE t1 ENABLE KEYS;
+# note: (pk is not null and (pk <1 or pk>1)) below is a sargable form of pk!=1
EXPLAIN
SELECT * FROM t1 FORCE KEY (PRIMARY , i , c1 , c2)
-WHERE pk = 255 OR i = 22 OR (pk IN (1 , 136) AND c2 IN ('c' , 'w') AND (c1 NOT BETWEEN 'e' AND 'i' OR c2 > 'g')) OR pk != 1 ;
+WHERE pk = 255 OR i = 22 OR (pk IN (1 , 136) AND c2 IN ('c' , 'w') AND (c1
+NOT BETWEEN 'e' AND 'i' OR c2 > 'g')) OR (pk is not null and (pk <1 or pk>1)) ;
DROP TABLE t1;