From: Reinoud van Leeuwen <reinoud.v@n.leeuwen.net>
To: pgsql-sql@postgresql.org
Subject: Re: problem porting MySQL SQL to Postgres
Date: Thu, 15 Apr 2004 11:55:56 +0200
Message-ID: <20040415095556.GA709@spoetnik.xs4all.nl> (raw)
In-Reply-To: <4A063822-8EC7-11D8-9677-000A958E367A@llgc.org.uk>
References: <4A063822-8EC7-11D8-9677-000A958E367A@llgc.org.uk>
On Thu, Apr 15, 2004 at 11:25:59AM +0100, Dan Field wrote:
> I've stumbled across a query I don't quite understand the error message
> for.
>
> This query is pulled from a working MySQL setup:
>
> SELECT
> DEWEY_ID, DEWEY_HUNDREDS, DEWEY_TENS, DEWEY_ONES, DEWEY_POINT_ONES,
> DEWEY_POINT_TENS,
> DEWEY_POINT_HUNDREDS, DEWEY_POINT_THOUSANDS, DEWEY_TYPE,
> DEWEY_LANG, DEWEY_SUBJECT FROM lu_dewey
> WHERE
> (DEWEY_HUNDREDS = 9) AND
> (DEWEY_TENS >= 0) AND
> (DEWEY_TENS <= 9) AND
> (DEWEY_ONES = 0 || DEWEY_ONES = NULL) AND
> (DEWEY_POINT_ONES = 0 || DEWEY_POINT_ONES = NULL) AND
> (DEWEY_POINT_TENS = 0 || DEWEY_POINT_TENS = NULL) AND
> (DEWEY_POINT_HUNDREDS = 0 || DEWEY_POINT_HUNDREDS = NULL) AND
> (DEWEY_POINT_THOUSANDS = 0 || DEWEY_POINT_THOUSANDS = NULL) AND
please use 'IS NULL' instead of '= NULL'
> (DEWEY_TYPE = 't') AND
> (DEWEY_LANG = 'en')
> ORDER BY DEWEY_TENS
>
>
> However I'm getting the following error:
>
> ERROR: Unable to identify an operator '=' for types 'character' and
> 'boolean' You will have to retype this query using an explicit cast.
can you post the output of '\d lu_dewey'?
--
__________________________________________________
"Nothing is as subjective as reality"
Reinoud van Leeuwen reinoud.v@n.leeuwen.net
http://www.xs4all.nl/~reinoud
__________________________________________________
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To: pgsql-sql@postgresql.org
Cc: reinoud.v@n.leeuwen.net
Subject: Re: problem porting MySQL SQL to Postgres
In-Reply-To: <20040415095556.GA709@spoetnik.xs4all.nl>
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