BUG: SELECT INTO Including UNION with Trace Flag 5302 Causes Access Violation

• Microsoft SQL Server version 6.5

SYMPTOMS

Running a "SELECT... INTO..." query that includes a UNION operator while trace flag 5302 is turned on can cause a handled access violation (AV) within SQL Server. When this happens, the client connection will become unresponsive.

The problem does not happen on versions of SQL Server 6.5 earlier than Service Pack 5.

WORKAROUND

To work around this problem, do either of the following:

• Turn off trace flag 5302.


-or-


• Avoid using the UNION operator within the "SELECT... INTO..." query. One way of achieving this would be to create the table in an earlier statement and then replace the "SELECT... INTO..." statement with an "INSERT INTO... SELECT...".

STATUS

Microsoft has confirmed this to be a problem in SQL Server version 6.5 Service Pack 5.

Additional query words:

Keywords : SSrvTran_SQL kbbug6.50
Version : winnt:6.5
Platform : winnt
Issue type : kbbug