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-rw-r--r--mysql-test/r/func_str.result16
1 files changed, 16 insertions, 0 deletions
diff --git a/mysql-test/r/func_str.result b/mysql-test/r/func_str.result
index 2622e070587..6fbb9c811a7 100644
--- a/mysql-test/r/func_str.result
+++ b/mysql-test/r/func_str.result
@@ -2470,4 +2470,20 @@ id
3
4
DROP TABLE t1;
+SELECT SUBSTR('foo',1,0) FROM DUAL;
+SUBSTR('foo',1,0)
+
+SELECT SUBSTR('foo',1,CAST(0 AS SIGNED)) FROM DUAL;
+SUBSTR('foo',1,CAST(0 AS SIGNED))
+
+SELECT SUBSTR('foo',1,CAST(0 AS UNSIGNED)) FROM DUAL;
+SUBSTR('foo',1,CAST(0 AS UNSIGNED))
+
+CREATE TABLE t1 (a varchar(10), len int unsigned);
+INSERT INTO t1 VALUES ('bar', 2), ('foo', 0);
+SELECT SUBSTR(a,1,len) FROM t1;
+SUBSTR(a,1,len)
+ba
+
+DROP TABLE t1;
End of 5.0 tests