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Add index-only scan support to range type GiST opclass.

Browse Source 
Andreas Karlsson
This commit is contained in:
Heikki Linnakangas 2015-03-30 13:21:43 +03:00
parent 1c41e2a998
commit 0633a60f4d
7 changed files with 38 additions and 2 deletions
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10
src/backend/utils/adt/rangetypes_gist.c
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@ -216,7 +216,7 @@ range_gist_union(PG_FUNCTION_ARGS)
PG_RETURN_RANGE(result_range);
}
/* compress, decompress are no-ops */
/* compress, decompress, fetch are no-ops */
Datum
range_gist_compress(PG_FUNCTION_ARGS)
{
@ -233,6 +233,14 @@ range_gist_decompress(PG_FUNCTION_ARGS)
PG_RETURN_POINTER(entry);
}
Datum
range_gist_fetch(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
PG_RETURN_POINTER(entry);
}
/*
* GiST page split penalty function.
*

2
src/include/catalog/catversion.h
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@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201503281
#define CATALOG_VERSION_NO 201503301
#endif

1
src/include/catalog/pg_amproc.h
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@ -235,6 +235,7 @@ DATA(insert ( 3919 3831 3831 4 3878 ));
DATA(insert ( 3919 3831 3831 5 3879 ));
DATA(insert ( 3919 3831 3831 6 3880 ));
DATA(insert ( 3919 3831 3831 7 3881 ));
DATA(insert ( 3919 3831 3831 9 3996 ));
/* gin */

2
src/include/catalog/pg_proc.h
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@ -4951,6 +4951,8 @@ DATA(insert OID = 3877 ( range_gist_compress PGNSP PGUID 12 1 0 0 0 f f f f t f
DESCR("GiST support");
DATA(insert OID = 3878 ( range_gist_decompress PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 2281 "2281" _null_ _null_ _null_ _null_ range_gist_decompress _null_ _null_ _null_ ));
DESCR("GiST support");
DATA(insert OID = 3996 ( range_gist_fetch PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 2281 "2281" _null_ _null_ _null_ _null_ range_gist_fetch _null_ _null_ _null_ ));
DESCR("GiST support");
DATA(insert OID = 3879 ( range_gist_penalty PGNSP PGUID 12 1 0 0 0 f f f f t f i 3 0 2281 "2281 2281 2281" _null_ _null_ _null_ _null_ range_gist_penalty _null_ _null_ _null_ ));
DESCR("GiST support");
DATA(insert OID = 3880 ( range_gist_picksplit PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 2281 "2281 2281" _null_ _null_ _null_ _null_ range_gist_picksplit _null_ _null_ _null_ ));

1
src/include/utils/rangetypes.h
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@ -209,6 +209,7 @@ extern RangeType *make_empty_range(TypeCacheEntry *typcache);
extern Datum range_gist_consistent(PG_FUNCTION_ARGS);
extern Datum range_gist_compress(PG_FUNCTION_ARGS);
extern Datum range_gist_decompress(PG_FUNCTION_ARGS);
extern Datum range_gist_fetch(PG_FUNCTION_ARGS);
extern Datum range_gist_union(PG_FUNCTION_ARGS);
extern Datum range_gist_penalty(PG_FUNCTION_ARGS);
extern Datum range_gist_picksplit(PG_FUNCTION_ARGS);

19
src/test/regress/expected/rangetypes.out
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@ -1072,6 +1072,25 @@ select count(*) from test_range_spgist where ir -|- int4range(100,500);
5
(1 row)
-- test index-only scans
explain (costs off)
select ir from test_range_spgist where ir -|- int4range(10,20) order by ir;
QUERY PLAN
------------------------------------------------------------------------
Sort
Sort Key: ir
-> Index Only Scan using test_range_spgist_idx on test_range_spgist
Index Cond: (ir -|- '[10,20)'::int4range)
(4 rows)
select ir from test_range_spgist where ir -|- int4range(10,20) order by ir;
ir
------------
[20,30)
[20,30)
[20,10020)
(3 rows)
RESET enable_seqscan;
RESET enable_indexscan;
RESET enable_bitmapscan;

5
src/test/regress/sql/rangetypes.sql
View File

@ -286,6 +286,11 @@ select count(*) from test_range_spgist where ir &< int4range(100,500);
select count(*) from test_range_spgist where ir &> int4range(100,500);
select count(*) from test_range_spgist where ir -|- int4range(100,500);
-- test index-only scans
explain (costs off)
select ir from test_range_spgist where ir -|- int4range(10,20) order by ir;
select ir from test_range_spgist where ir -|- int4range(10,20) order by ir;
RESET enable_seqscan;
RESET enable_indexscan;
RESET enable_bitmapscan;