Details
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Type:
Bug
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: None
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Component/s: None
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Labels:
Description
The following sequence of commands gives us an unexpected error message in MariaDB 5.5:
CREATE TABLE t1 (a int);
CREATE TABLE t2 (b int);
CREATE TABLE t3 (c int);
SELECT a FROM t1 UNION SELECT b FROM t2 JOIN (t3) ON ( t2.b = t3.c );
MariaDB [test]> SELECT a FROM t1 UNION SELECT b FROM t2 JOIN (t3) ON ( t2.b = t3.c );
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'ON ( t2.b = t3.c )' at line 1
If we exchange SELECTs in the above UNION the query will be accepted though:
MariaDB [test]> SELECT b FROM t2 JOIN (t3) ON ( t2.b = t3.c ) UNION SELECT a FROM t1;
Empty set (0.00 sec)
The versions MariaDB 5.2/5.3 are not affected, while mysql-5.5 is affected: see http://bugs.mysql.com/bug.php?id=54382
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Launchpad bug id: 1010729
Re: Unexpected syntax error for a query with UNION of left joins
Fix released in 5.5.25