I'm using a 7.4.6 Perl app that bulk-loads a table,
by executing a "COPY TMP_Message FROM STDIN", then letting
$dbh->func($message_text."\n", "putline")
Speculation made me try catenating Several \n-terminated lines
together, and making a single putline() call with that.
Lo and behold, all the lines went in as separate rows, as I hoped.
I haven't measured the performance difference using this multiline
batching. I'm hoping that there will be as much,since the app is really sucking
on a 500 msg/sec firehose, and the db side needs serious speeding up. Question
is, am I playing with a version-dependent anomaly, or should I expect this
to continue in 8.x (until, eventually, silently, something causes
this to break)?
I'm presuming that this is not a Perl DBI/DBD::Pg question,
but rather, depending on the underlying pq lib and fe protocol.
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