| From: | Andrew Sullivan <andrew(at)libertyrms(dot)info> | 
|---|---|
| To: | pgsql-general(at)postgresql(dot)org | 
| Subject: | Re: Concatenating two Text fields from the same tuple | 
| Date: | 2003-07-03 20:01:57 | 
| Message-ID: | 20030703200156.GN1561@libertyrms.info | 
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| Lists: | pgsql-general | 
On Thu, Jul 03, 2003 at 06:16:35PM +0100, psql-mail(at)freeuk(dot)com wrote:
> Question 2: If not - is it possible for me to concatenate attr1 and 
> attr2 before i do the search as this would remove the logic problems. ( 
> and if it is possible - is it efficient?)
I don't know the answer to your other problems, but the "||" operator
allows you to concatenate.  And "where field1||field2 = 'something'"
works.  Whether it'd be efficienct is another question.  Maybe you
could do something fancy with a partial index or something, but I
can't think how.
A
----
Andrew Sullivan                         204-4141 Yonge Street
Liberty RMS                           Toronto, Ontario Canada
<andrew(at)libertyrms(dot)info>                              M2P 2A8
                                         +1 416 646 3304 x110
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