Обсуждение: pgsql: Fix costing for parallel aggregation.

Fix costing for parallel aggregation.

The original patch kind of ignored the fact that we were doing something
different from a costing point of view, but nobody noticed.  This patch
fixes that oversight.

David Rowley

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/deb71fa9713dfe374a74fc58a5d298b5f25da3f5

Modified Files
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src/backend/optimizer/plan/planner.c | 39 +++++++++++++++----
src/backend/optimizer/util/clauses.c | 75 ++++++++++++++++++++++++++++--------
src/include/optimizer/clauses.h      |  3 +-
3 files changed, 92 insertions(+), 25 deletions(-)