Re: COPY TABLE TO

SELECT x, y
(SELECT 1 AS ord, COUNT(*) as x, NULL AS y FROM tablex
UNION
SELECT 2, x, y FROM tablex)

May be you will have to do some explicit casting depending on the field
types.

--
Paulo Scardine

----- Original Message -----
From: "Paul Punett" <paul(dot)punett(at)shazamteam(dot)com>
To: <pgsql-hackers(at)postgresql(dot)org>
Sent: Monday, December 22, 2003 8:35 AM
Subject: [HACKERS] COPY TABLE TO

> Hi,
>
> I need to write a tab separated text file such that the first row contains
> number of records in the table.
> I insert first row with '0' (zero) as first column & rest columns NULL.
> Then at the end of writing records to table I do a select into Variable
> count(*) from table.
> & update the first record with the count returned.
> Unfortunately after the update the first row becomes the last row & hence
> COPY TO FileName sends the count as the last record.
>
> I need count as the first record? Any suggestions please ?
> The documentation says indexing does not affect copy order.
>
> I am developing on C++ with PostGre on windows. I need to port to Linux
> later. Any suggestions on linking C++ code to PostGre (queries &
functions)
>
> Thanks
> Paul
>
>
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