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| author | unknown <timour@mysql.com> | 2005-02-02 08:38:24 +0200 |
|---|---|---|
| committer | unknown <timour@mysql.com> | 2005-02-02 08:38:24 +0200 |
| commit | d81a0bede23ca74222252b6f43bd85ead5d7be2a (patch) | |
| tree | e918a393d7772ab0a299bcc3ea1b6a8756f5ae7f /mysql-test/t/limit.test | |
| parent | 514b2364b4156e23fb15f4506a50877011b9c7ef (diff) | |
| download | mariadb-git-d81a0bede23ca74222252b6f43bd85ead5d7be2a.tar.gz | |
Fix for BUG#8023.
Allow LIMIT clause after DUAL.
mysql-test/r/limit.result:
Added test result for BUG#8023.
mysql-test/t/limit.test:
Added test for BUG#8023.
sql/sql_yacc.yy:
Allow the specification of a LIMIT clause after DUAL. This is needed for queries as:
select a from t1 union all select 1 from dual limit 1;
In this query LIMIT is applied to the whole UNION, so it makes sense, however, the
current parser did not allow any clause after DUAL.
Diffstat (limited to 'mysql-test/t/limit.test')
| -rw-r--r-- | mysql-test/t/limit.test | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/mysql-test/t/limit.test b/mysql-test/t/limit.test index 61c57c9b468..28b287a5d4a 100644 --- a/mysql-test/t/limit.test +++ b/mysql-test/t/limit.test @@ -49,3 +49,13 @@ SELECT * FROM t1; DELETE FROM t1 WHERE id2 = 0 ORDER BY id desc LIMIT 1; SELECT * FROM t1; DROP TABLE t1; + +# +# Bug#8023 - limit on UNION with from DUAL, causes syntax error +# +create table t1 (a integer); +insert into t1 values (1); +# both queries must return one row +select 1 as a from t1 union all select 1 from dual limit 1; +(select 1 as a from t1) union all (select 1 from dual) limit 1; +drop table t1; |