diff options
Diffstat (limited to 'src/include/access/spgist_private.h')
| -rw-r--r-- | src/include/access/spgist_private.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/include/access/spgist_private.h b/src/include/access/spgist_private.h index 428e54bfbd2..46c6cb0ce29 100644 --- a/src/include/access/spgist_private.h +++ b/src/include/access/spgist_private.h @@ -16,12 +16,29 @@ #include "access/itup.h" #include "access/spgist.h" +#include "catalog/pg_am_d.h" #include "nodes/tidbitmap.h" #include "storage/buf.h" #include "utils/geo_decls.h" #include "utils/relcache.h" +typedef struct SpGistOptions +{ + int32 varlena_header_; /* varlena header (do not touch directly!) */ + int fillfactor; /* page fill factor in percent (0..100) */ +} SpGistOptions; + +#define SpGistGetFillFactor(relation) \ + (AssertMacro(relation->rd_rel->relkind == RELKIND_INDEX && \ + relation->rd_rel->relam == SPGIST_AM_OID), \ + (relation)->rd_options ? \ + ((SpGistOptions *) (relation)->rd_options)->fillfactor : \ + SPGIST_DEFAULT_FILLFACTOR) +#define SpGistGetTargetPageFreeSpace(relation) \ + (BLCKSZ * (100 - SpGistGetFillFactor(relation)) / 100) + + /* Page numbers of fixed-location pages */ #define SPGIST_METAPAGE_BLKNO (0) /* metapage */ #define SPGIST_ROOT_BLKNO (1) /* root for normal entries */ @@ -423,6 +440,11 @@ typedef SpGistDeadTupleData *SpGistDeadTuple; #define GBUF_REQ_NULLS(flags) ((flags) & GBUF_NULLS) /* spgutils.c */ + +/* reloption parameters */ +#define SPGIST_MIN_FILLFACTOR 10 +#define SPGIST_DEFAULT_FILLFACTOR 80 + extern SpGistCache *spgGetCache(Relation index); extern void initSpGistState(SpGistState *state, Relation index); extern Buffer SpGistNewBuffer(Relation index); |