Re: COPY with hints, rebirth
Kevin Grittner <kevin.grittner@wicourts.gov>
From: "Kevin Grittner" <Kevin.Grittner@wicourts.gov>
To: "Simon Riggs" <simon@2ndQuadrant.com>,
"Noah Misch" <noah@leadboat.com>
Cc: "Heikki Linnakangas" <heikki.linnakangas@enterprisedb.com>, "PostgreSQL-development" <pgsql-hackers@postgresql.org>
Date: 2012-03-02T23:15:47Z
Lists: pgsql-hackers
Simon Riggs <simon@2ndQuadrant.com> wrote: > I like Marti's idea. At present, making his idea work could easily > mean checksums sink, so not sure whether to attempt to make that > work in detail. For my part, improving bulk load performance and TRUNCATE transactional semantics would trump checksums. If we have to defer one or the other to a later release, I would prefer that we bump checksums. While I understand the desire for checksums, and understand others have had situations where they would have helped, so far I have yet to run into a situation where I feel they would have helped me. The hint bit and freeze issues require ongoing attention and have real performance consequences on a regular basis. And closing the window for odd transactional semantics on TRUNCATE versus DELETE of all rows in a table would be one less thing to worry about, in my world. -Kevin