Re: XMIN/xid vs UNION

> Try a cast, or just use UNION ALL
Thanks.

Casting didn't work (it was missing the proper cast function
from xid to int4) but using UNION ALL worked. This was also
possible to use in my case since both parts of the UNION do
indeed return distinct sets of rows so UNION ALL does not
produce duplicates.

However, the question still holds true: Is there any
particular reason those operators aren't found in my PG
installation despite being listed as added since 7.2 ?
IOW why does
 select 1::xid::int2/int4/int8
fail (on 7.4) despite 7.2 docs suggesting it should work ?

Karsten
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