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Add sortsupport routines for text.

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This provides a small but worthwhile speedup when sorting text, at least
in cases to which the sortsupport machinery applies.

Robert Haas and Peter Geoghegan
This commit is contained in:
Robert Haas
2014-08-14 12:09:52 -04:00
parent a4287a689d
commit b34e37bfef
5 changed files with 215 additions and 11 deletions
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src/include/utils/builtins.h
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@@ -316,6 +316,7 @@ extern Datum bttintervalcmp(PG_FUNCTION_ARGS);
extern Datum btcharcmp(PG_FUNCTION_ARGS);
extern Datum btnamecmp(PG_FUNCTION_ARGS);
extern Datum bttextcmp(PG_FUNCTION_ARGS);
extern Datum bttextsortsupport(PG_FUNCTION_ARGS);
/*
* Per-opclass sort support functions for new btrees. Like the