Обсуждение: [COMMITTERS] pgsql: Account for the effect of lossy pages when costing bitmapscans.

Account for the effect of lossy pages when costing bitmap scans.

Dilip Kumar, reviewed by Alexander Kumenkov, Amul Sul, and me.
Some final adjustments by me.

Discussion: http://postgr.es/m/CAFiTN-sYtqUOXQ4SpuhTv0Z9gD0si3YxZGv_PQAAMX8qbOotcg@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/5edc63bda68a77c4d38f0cbeae1c4271f9ef4100

Modified Files
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src/backend/nodes/tidbitmap.c         | 37 +++++++++++++++-------
src/backend/optimizer/path/costsize.c | 59 +++++++++++++++++++++++++++++------
src/include/nodes/tidbitmap.h         |  1 +
3 files changed, 75 insertions(+), 22 deletions(-)


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