Thread: pgsql: Change collation cache to use simplehash.h.

Change collation cache to use simplehash.h.

Speeds up text comparison expressions when using a collation other
than the database default collation. Does not affect larger operations
such as ORDER BY, because the lookup is only done once.

Discussion: https://postgr.es/m/7bb9f018d20a7b30b9a7f6231efab1b5e50c7720.camel@j-davis.com
Reviewed-by: John Naylor, Andreas Karlsson

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/005c6b833f7866b71b50a5382e30d6c3f695306e

Modified Files
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src/backend/utils/adt/pg_locale.c | 39 +++++++++++++++++++++++++++------------
1 file changed, 27 insertions(+), 12 deletions(-)