From: | "Peter Darley" <pdarley(at)kinesis-cem(dot)com> |
---|---|
To: | "Johnson, Shaunn" <SJohnson6(at)bcbsm(dot)com>, <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: return true / false instead of int4 value |
Date: | 2002-06-04 16:18:16 |
Message-ID: | NNEAICKPNOGDBHNCEDCPAEHLCJAA.pdarley@kinesis-cem.com |
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Lists: | pgsql-general |
return true / false instead of int4 valueShaunn,
You can do something like:
SELECT CASE WHEN COUNT(*) > 1500000 THEN TRUE ELSE FALSE END FROM
t_table WHERE Whatever GROUP BY Whatever;
Thanks,
Peter Darley
-----Original Message-----
From: pgsql-general-owner(at)postgresql(dot)org
[mailto:pgsql-general-owner(at)postgresql(dot)org]On Behalf Of Johnson, Shaunn
Sent: Tuesday, June 04, 2002 9:00 AM
To: pgsql-general(at)postgresql(dot)org
Subject: [GENERAL] return true / false instead of int4 value
Howdy:
I want to know if this is even possible: How
can I return a true/false value instead of
integer?
I want to do something like this:
[snip]
select count(*) from t_table
having count(*) > 1500000
[/snip]
But want to return a true/false (bool) result.
Background:
The goal is to do what I have been doing for the
past few weeks - get a count of a table and,
based on the count, either create a new table
or fail and halt the rest of the related process.
I've done the function thing - it doesn't work
very well. It stalls a few times and somehow
I created a bogus function type in one of the
system tables ... so ... I'm going to stay
away from that.
I've created a perl script to do exactly what
I want! ... 'cept ... during the regular
database refresh, it doesn't complete
until well AFTER I need it to ... other views
and tables are dependent on this one being
created first.
SO ... I'm looking for a nitch on how to
convert (and cast won't work for me) the
type from 'int4' to 'bool' for the above
sql excerpt.
*whew*
Suggestion?
HEY: Somebody send me some disco ... er ...
motivation music!
-X
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