> Simon Riggs wrote: > Kevin Grittner wrote: >> Simon Riggs wrote: >> >>> I like Marti's idea. At present, making his idea work could >>> easily mean checksums sink >> For my part, improving bulk load performance and TRUNCATE >> transactional semantics would trump checksums > It doesn't look like it needs to be either-or. Great news! > Please review the safe_truncate.v2.patch and > copy_autofrozen.v359.patch, copied here to assist testing and > inspection. I'll look at it today. > At present those patches handle only the TRUNCATE/COPY optimisation > but we could easily add CTAS, CREATE/COPY, CLUSTERVACUUM FULL etc.. CREATE/COPY would be important so that pg_dump | psql -1 would benefit. -Kevin
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