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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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2
src/include/catalog/catversion.h
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@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201407151
#define CATALOG_VERSION_NO 201408141
#endif

1
src/include/catalog/pg_amproc.h
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@ -122,6 +122,7 @@ DATA(insert ( 1989 26 26 1 356 ));
DATA(insert ( 1989 26 26 2 3134 ));
DATA(insert ( 1991 30 30 1 404 ));
DATA(insert ( 1994 25 25 1 360 ));
DATA(insert ( 1994 25 25 2 3255 ));
DATA(insert ( 1996 1083 1083 1 1107 ));
DATA(insert ( 2000 1266 1266 1 1358 ));
DATA(insert ( 2002 1562 1562 1 1672 ));

2
src/include/catalog/pg_proc.h
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@ -614,6 +614,8 @@ DATA(insert OID = 3135 ( btnamesortsupport PGNSP PGUID 12 1 0 0 0 f f f f t f i
DESCR("sort support");
DATA(insert OID = 360 ( bttextcmp PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 23 "25 25" _null_ _null_ _null_ _null_ bttextcmp _null_ _null_ _null_ ));
DESCR("less-equal-greater");
DATA(insert OID = 3255 ( bttextsortsupport PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 2278 "2281" _null_ _null_ _null_ _null_ bttextsortsupport _null_ _null_ _null_ ));
DESCR("sort support");
DATA(insert OID = 377 ( cash_cmp PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 23 "790 790" _null_ _null_ _null_ _null_ cash_cmp _null_ _null_ _null_ ));
DESCR("less-equal-greater");
DATA(insert OID = 380 ( btreltimecmp PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 23 "703 703" _null_ _null_ _null_ _null_ btreltimecmp _null_ _null_ _null_ ));

1
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