Re: [PERFORM] Insert performance slows down in large batch

2005-12-01 Thread Tom Lane
"Jeremy Haile" <[EMAIL PROTECTED]> writes: > 1) Why does the performance degrade as the table sizes grow? Shouldn't > the insert performance remain fairly constant if there are no indexes or > constraints? Yeah, insert really should be a constant-time operation if there's no add-on operations l

[PERFORM] Insert performance slows down in large batch

2005-12-01 Thread Jeremy Haile
I am importing roughly 15 million rows in one batch transaction. I am currently doing this through batch inserts of around 500 at a time, although I am looking at ways to do this via multiple (one-per-table) copy commands for performance reasons. I am currently running: PostgreSQL 8.0.4, Redhat