With latest CVS sources, the UNION regress test isn't working.
Well, it's still giving the right query results, but it's also
producing a lot of messages like this:

NOTICE:  equal: don't know whether nodes of type 600 are equal

That's a failure according to the expected output...

			regards, tom lane

Sat, 23 Jan 1999 16:28:40 -0500
Tom Lane <tgl@sss.pgh.pa.us>
UNION regress test is failing