Thread: pgsql: Use the sortsupport infrastructure in more cases.

Use the sortsupport infrastructure in more cases.

This removes some fmgr overhead from cases such as btree index builds.

Peter Geoghegan, reviewed by Andreas Karlsson and me.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/5ea86e6e65dd2da3e9a3464484985d48328e7fe3

Modified Files
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src/backend/access/nbtree/nbtsort.c  |   63 ++++----
src/backend/utils/sort/sortsupport.c |   79 +++++++---
src/backend/utils/sort/tuplesort.c   |  275 ++++++++++++++--------------------
src/include/utils/sortsupport.h      |    3 +
4 files changed, 206 insertions(+), 214 deletions(-)