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Re: Aggregate function problem in VB6

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Sekcja Informatyki Medycznej" <informatyka(at)cskmswia(dot)pl>
Cc: "pgsql-odbc" <pgsql-odbc(at)postgresql(dot)org>
Subject: Re: Aggregate function problem in VB6
Date: 2001-05-31 16:38:19
Message-ID: 11112.991327099@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-odbc
"Sekcja Informatyki Medycznej" <informatyka(at)cskmswia(dot)pl> writes:
> I have encountered a problem with following query run over ODBC in MS VS 6.0
> SP5 in DataEnvironment designer:

> "SELECT SUM(field1) FROM table1;"
> field 1 is of type INT4.

> There is "E_FAIL" error message.

SUM() of int4 yields type NUMERIC these days.  Perhaps MS VS doesn't
know what that is, or perhaps our ODBC driver doesn't handle it well.

A possible workaround is to cast the result back to int4, but that
just re-exposes you to the overflow risk we were trying to eliminate...

			regards, tom lane

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