git.postgresql.org Git - postgresql.git/commit
2016年4月10日 04:24:28 +0000 (00:24 -0400)
2016年4月10日 04:24:28 +0000 (00:24 -0400)
commit 660d5fb856c61df2de2cedb26249404ffc58cb89
Further minor improvement in generic_xlog.c: always say REGBUF_STANDARD.
Since we're requiring pages handled by generic_xlog.c to be standard
format, specify REGBUF_STANDARD when doing a full-page image, so that
xloginsert.c can compress out the "hole" between pd_lower and pd_upper.
Given the current API in which this path will be taken only for a newly
initialized page, the hole is likely to be particularly large in such
cases, so that this oversight could easily be performance-significant.
I don't notice any particular change in the runtime of contrib/bloom's
regression test, though.
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