Slightly confused error message

From: Markus Schaber <schabi(at)logix-tt(dot)com>
To: PostgreSQL SQL List <pgsql-sql(at)postgresql(dot)org>
Subject: Slightly confused error message
Date: 2006-04-28 15:59:45
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I just stumbled over a slightly confused error message:

mydb=# select count(*),coverage_area from myschema.streets except select
cd as coverage_area from countryref.disks group by streets.coverage_area;
ERROR: column "streets.coverage_area" must appear in the GROUP BY
clause or be used in an aggregate function

As the query looks, streets.coverage_area is actually used in the GROUP BY.

I know how to fix the query, but I wonder whether it is worth the effort
to try improving the error message.

Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf. | Software Development GIS

Fight against software patents in EU!


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