Added a test case with views for bug 18243 (see also func_str.test).

mysql-test/r/view.result

@@ -2750,3 +2750,16 @@ a	b
 0	2
 DROP VIEW v1;
 DROP TABLE t1;
+CREATE TABLE t1 (firstname text, surname text);
+INSERT INTO t1 VALUES
+("Bart","Simpson"),("Milhouse","van Houten"),("Montgomery","Burns");
+CREATE VIEW v1 AS SELECT CONCAT(firstname," ",surname) AS name FROM t1;
+SELECT CONCAT(LEFT(name,LENGTH(name)-INSTR(REVERSE(name)," ")),
+LEFT(name,LENGTH(name)-INSTR(REVERSE(name)," "))) AS f1
+FROM v1;
+f1
+BartBart
+Milhouse vanMilhouse van
+MontgomeryMontgomery
+DROP VIEW v1;
+DROP TABLE t1;

mysql-test/t/view.test

@@ -2614,3 +2614,19 @@ SELECT * FROM t1;
 
 DROP VIEW v1;
 DROP TABLE t1;
+
+#
+# Bug #18243: expression over a view column that with the REVERSE function
+#
+
+CREATE TABLE t1 (firstname text, surname text);
+INSERT INTO t1 VALUES
+  ("Bart","Simpson"),("Milhouse","van Houten"),("Montgomery","Burns");
+
+CREATE VIEW v1 AS SELECT CONCAT(firstname," ",surname) AS name FROM t1;
+SELECT CONCAT(LEFT(name,LENGTH(name)-INSTR(REVERSE(name)," ")),
+              LEFT(name,LENGTH(name)-INSTR(REVERSE(name)," "))) AS f1
+ FROM v1;
+
+DROP VIEW v1;
+DROP TABLE t1;