Re: code example for PQgetCopyData

Looks like fun.

Tom added some comments on the PQgetCopyData function.

If your environment allows, put a breapoint in on the line below and look
at the vars

while (nLen = PQgetCopyData(pConn, buffer, false) > 0)

perhaps this will get you working
while (nLen = PQgetCopyData(pConn, &buffer, false) > 0)


here's the only sample I found

while (!copydone)
{
! ret = PQgetCopyData(g_conn, &copybuf, false);
! switch (ret) {
! case -1:
! copydone = true;
! break;
! case 0:
! case -2:
! write_msg(NULL, "SQL command to dump the contents of table \"%s\" failed:
PQgetCopyData() failed.\n", classname);
! write_msg(NULL, "Error message from server: %s", PQerrorMessage(g_conn));
! write_msg(NULL, "The command was: %s\n", q->data);
! exit_nicely();
! break;
! default:
! archputs(copybuf, fout);
! PQfreemem(copybuf);
! break;
}

_____

From: Dave Huber [mailto:DHuber(at)letourneautechnologies(dot)com]
Sent: Thursday, December 03, 2009 11:35 AM
To: 'bret_stern(at)machinemanagement(dot)com'; pgsql-general(at)postgresql(dot)org
Subject: RE: [GENERAL] code example for PQgetCopyData

> Where is it blowing up?

I'm sorry, I wasn't clear. It bombs on the PQgetCopyData call. If I comment
out the entire while loop, the program runs fine. If I simply comment out
the contents of the while loop.kablooey!

Dave

_____

This electronic mail message is intended exclusively for the individual(s)
or entity to which it is addressed. This message, together with any
attachment, is confidential and may contain privileged information. Any
unauthorized review, use, printing, retaining, copying, disclosure or
distribution is strictly prohibited. If you have received this message in
error, please immediately advise the sender by reply email message to the
sender and delete all copies of this message.
THIS E-MAIL IS NOT AN OFFER OR ACCEPTANCE: Notwithstanding the Uniform
Electronic Transactions Act or any other law of similar import, absent an
express statement to the contrary contained in this e-mail, neither this
e-mail nor any attachments are an offer or acceptance to enter into a
contract, and are not intended to bind the sender, LeTourneau Technologies,
Inc., or any of its subsidiaries, affiliates, or any other person or entity.
WARNING: Although the company has taken reasonable precautions to ensure no
viruses are present in this email, the company cannot accept responsibility
for any loss or damage arising from the use of this email or attachments.