Postgresql 9.0.8 - ECPG - COPY FROM returning COUNT

From: Rene Grün <rene(dot)gruen(at)cslab(dot)de>
To: <pgsql-interfaces(at)postgresql(dot)org>
Subject: Postgresql 9.0.8 - ECPG - COPY FROM returning COUNT
Date: 2013-05-24 14:42:21
Message-ID: 5AD33821D1C0AD479A69349F17DA5F5548697F@exchange.mbs.internal
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Dear List,

I'm trying to copy an unknown amount of data from a file to a table unsing a copy command.

This is working without any problems.

Now I want to get the number of copied rows.

In psql this is retuned as a text 'COPY XXX'

How can I get this in ECPG?

Using a prepared DELETE- or INSERT- statement I can simply execute the statement INTO a var.

EXEC SQL BEGIN DECLARE SECTION;
const char *stmt_1 = "DELETE FROM my_table;";
int myVar;
EXEC SQL END DECLARE SECTION;

EXEC SQL PREPARE stmt_1 FROM :stmt_1;
EXECUTE stmt_1 INTO :myVar;

Var now contains the number of deleted rows.

But...

EXEC SQL BEGIN DECLARE SECTION;
const char *stmt_1 = "COPY my_table FROM '/tmp/file.data';";
int myVar;
EXEC SQL END DECLARE SECTION;

EXEC SQL PREPARE stmt_1 FROM :stmt_1;
EXECUTE stmt_1 INTO :myVar;

mvVar is always 0.

Any suggestions how to get the numer?

Mit freundlichen Grüßen aus Krefeld,
With best regards from Krefeld,

CS-Lab GmbH
i. A. René Grün

E-Mail: rgr(at)cslab(dot)de
Fon:    +49 2151 72949-0
Fax:    +49 2151 72949-9
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D-47809 Krefeld
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