Обсуждение: pgsql: Further optimize multi-key GIN searches.

Further optimize multi-key GIN searches.

If we're skipping past a certain TID, avoid decoding posting list segments
that only contain smaller TIDs.

Extracted from Alexander Korotkov's fast scan patch, heavily modified.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/25b1dafab63f465a65c63b26834dc18857f0fa0c

Modified Files
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src/backend/access/gin/gindatapage.c |   38 ++++++++++++++++++++++++++++++----
src/backend/access/gin/ginget.c      |    6 ++++--
src/include/access/gin_private.h     |    2 +-
3 files changed, 39 insertions(+), 7 deletions(-)