diff options
Diffstat (limited to 'mysql-test/main/order_by_zerolength-4285.result')
| -rw-r--r-- | mysql-test/main/order_by_zerolength-4285.result | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/mysql-test/main/order_by_zerolength-4285.result b/mysql-test/main/order_by_zerolength-4285.result index e6902105f20..95b4224f5a2 100644 --- a/mysql-test/main/order_by_zerolength-4285.result +++ b/mysql-test/main/order_by_zerolength-4285.result @@ -25,3 +25,23 @@ Warning 1292 Truncated incorrect CHAR(0) value: '8' Warning 1292 Truncated incorrect CHAR(0) value: '9' Warning 1292 Truncated incorrect CHAR(0) value: '10' drop table t1; +# +# MDEV-17020: Assertion `length > 0' failed in ptr_compare upon ORDER BY with bad conversion +# +set @save_sql_mode= @@sql_mode; +SET @@sql_mode= ''; +CREATE TABLE t1 (pk INT PRIMARY KEY); +INSERT INTO t1 VALUES (1),(2); +explain +SELECT * FROM t1 ORDER BY 'foo', CONVERT(pk, CHAR(0)) LIMIT 2; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index NULL PRIMARY 4 NULL 2 Using index; Using filesort +SELECT * FROM t1 ORDER BY 'foo', Cast(pk as CHAR(0)) LIMIT 2; +pk +1 +2 +Warnings: +Warning 1292 Truncated incorrect CHAR(0) value: '1' +Warning 1292 Truncated incorrect CHAR(0) value: '2' +set @@sql_mode= @save_sql_mode; +drop table t1; |