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Add index-only scan support to btree_gist.

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inet, cidr, and timetz indexes still cannot support index-only scans,
because they don't store the original unmodified value in the index, but a
derived approximate value.
This commit is contained in:
Heikki Linnakangas
2015-03-27 23:35:16 +02:00
parent 735cd6128a
commit e09b48316c
46 changed files with 614 additions and 51 deletions
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8
contrib/btree_gist/btree_float8.c
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@ -16,6 +16,7 @@ typedef struct float8key
** float8 ops
*/
PG_FUNCTION_INFO_V1(gbt_float8_compress);
PG_FUNCTION_INFO_V1(gbt_float8_fetch);
PG_FUNCTION_INFO_V1(gbt_float8_union);
PG_FUNCTION_INFO_V1(gbt_float8_picksplit);
PG_FUNCTION_INFO_V1(gbt_float8_consistent);
@ -123,6 +124,13 @@ gbt_float8_compress(PG_FUNCTION_ARGS)
PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
}
Datum
gbt_float8_fetch(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
}
Datum
gbt_float8_consistent(PG_FUNCTION_ARGS)