Re: UNION bug in 7.1.3?

On Mon, 22 Oct 2001, Keary Suska wrote:

 > The following syntax, which works fine in 7.0.3, fails in 7.1.3:
 >
 > SELECT t1.col1, t2.col2 FROM table1 t1, table2 t2
 > WHERE t1.col3 = t2.col4
 > UNION
 > SELECT t1.col1, NULL FROM table1 t1
 > WHERE t1.col3 NOT IN (SELECT t2.col2 FROM table2 t2)
 > ORDER BY t1.col1
 >
 >
 > The above error goes away, but is replaced by "ERROR:  ORDER BY on a
 > UNION/INTERSECT/EXCEPT result must be on one of the result columns". 
Is this
 > a bug? It doesn't even work when using full table names instead of 
aliases.

This is not a bug. Use aliases instaed or use the position number of the
column in the order by clause. Ex. ORDER BY 1

Regards
Herbie
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Herbert Liechti                                  http://www.thinx.ch
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