| From: | Mike Aubury <mike(at)aubit(dot)com> |
|---|---|
| To: | "Dave Page" <dpage(at)vale-housing(dot)co(dot)uk>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Hannu Krosing" <hannu(at)tm(dot)ee> |
| Cc: | "Dave Cramer" <dave(at)fastcrypt(dot)com>, "Peter Eisentraut" <peter_e(at)gmx(dot)net>, "Pgsql Hackers" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: request for sql3 compliance for the update command |
| Date: | 2003-02-20 19:09:54 |
| Message-ID: | 200302201909.54460.mike@aubit.com |
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| Thread: | |
| Lists: | pgsql-hackers |
Informix supports 2 different styles for the update - your one would have to
be written :
UPDATE djp SET(col1, col2) = ((SELECT col1,col2 FROM some_other_table))
Notice the double brackets !
The first signifies a list of values - the second is the brackets around the
subquery...
(NB If you try to reference the same table in the Update - you'll get an
error....)
For single columns you could still write :
UPDATE djp SET col1 = (SELECT col2 FROM some_other_table)
Notice - one more set of brackets on the right as on the left....
> UPDATE djp SET(col1, col2) = (SELECT col2, col1 FROM djp)
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