1 files changed, 27 insertions, 0 deletions
diff --git a/mysql-test/t/sp.test b/mysql-test/t/sp.test
index 5cf050146dd..9207ea22290 100644
--- a/mysql-test/t/sp.test
+++ b/mysql-test/t/sp.test
@@ -8350,6 +8350,33 @@ SET @@GLOBAL.init_connect= @old_init_connect;
 DROP PROCEDURE p2;
 DROP PROCEDURE p5;
 
+--echo #
+--echo # Bug#11766594  59736: SELECT DISTINCT.. INCORRECT RESULT WITH DETERMINISTIC FUNCTION IN WHERE C
+--echo #
+
+CREATE TABLE t1 (a INT, b INT, KEY(b));
+CREATE TABLE t2 (c INT, d INT, KEY(c));
+INSERT INTO t1 VALUES (1,1),(1,1),(1,2);
+INSERT INTO t2 VALUES (1,1),(1,2);
+
+DELIMITER $;
+
+CREATE FUNCTION f1() RETURNS INT DETERMINISTIC
+BEGIN
+  DECLARE a int;
+  -- SQL statement inside
+  SELECT 1 INTO a;
+  RETURN a;
+END $
+
+DELIMITER ;$
+
+SELECT COUNT(DISTINCT d) FROM t1, t2  WHERE a = c AND b = f1();
+
+DROP FUNCTION f1;
+DROP TABLE t1, t2;
+
+
 --echo # ------------------------------------------------------------------
 --echo # -- End of 5.1 tests
 --echo # ------------------------------------------------------------------