diff options
Diffstat (limited to 'src/include/access/gist_private.h')
| -rw-r--r-- | src/include/access/gist_private.h | 67 |
1 files changed, 38 insertions, 29 deletions
diff --git a/src/include/access/gist_private.h b/src/include/access/gist_private.h index f75682847a6..7a55a312168 100644 --- a/src/include/access/gist_private.h +++ b/src/include/access/gist_private.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/gist_private.h,v 1.17 2006/05/29 12:50:06 teodor Exp $ + * $PostgreSQL: pgsql/src/include/access/gist_private.h,v 1.18 2006/06/28 12:00:14 teodor Exp $ * *------------------------------------------------------------------------- */ @@ -180,6 +180,21 @@ typedef struct GISTInsertStack struct GISTInsertStack *next; } GISTInsertStack; +typedef struct GistSplitVector { + GIST_SPLITVEC splitVector; /* to/from PickSplit method */ + + Datum spl_lattr[INDEX_MAX_KEYS]; /* Union of subkeys in spl_left */ + bool spl_lisnull[INDEX_MAX_KEYS]; + bool spl_leftvalid; + + Datum spl_rattr[INDEX_MAX_KEYS]; /* Union of subkeys in spl_right */ + bool spl_risnull[INDEX_MAX_KEYS]; + bool spl_rightvalid; + + bool *spl_equiv; /* equivalent tuples which can be freely + * distributed between left and right pages */ +} GistSplitVector; + #define XLogRecPtrIsInvalid( r ) ( (r).xlogid == 0 && (r).xrecoff == 0 ) typedef struct @@ -206,12 +221,6 @@ typedef struct /* root page of a gist index */ #define GIST_ROOT_BLKNO 0 -#define ATTSIZE(datum, tupdesc, i, isnull) \ - ( \ - (isnull) ? 0 : \ - att_addlength(0, (tupdesc)->attrs[(i)-1]->attlen, (datum)) \ - ) - /* * mark tuples on inner pages during recovery */ @@ -281,7 +290,7 @@ extern IndexTuple gistgetadjusted(Relation r, IndexTuple addtup, GISTSTATE *giststate); extern IndexTuple gistFormTuple(GISTSTATE *giststate, - Relation r, Datum *attdata, int *datumsize, bool *isnull); + Relation r, Datum *attdata, bool *isnull, bool newValues); extern OffsetNumber gistchoose(Relation r, Page p, IndexTuple it, @@ -289,34 +298,34 @@ extern OffsetNumber gistchoose(Relation r, Page p, extern void gistcentryinit(GISTSTATE *giststate, int nkey, GISTENTRY *e, Datum k, Relation r, Page pg, - OffsetNumber o, int b, bool l, bool isNull); -extern void gistDeCompressAtt(GISTSTATE *giststate, Relation r, - IndexTuple tuple, Page p, OffsetNumber o, - GISTENTRY *attdata, bool *isnull); - -typedef struct { - int *attrsize; - Datum *attr; - int len; - OffsetNumber *entries; - bool *isnull; - int *idgrp; -} GistSplitVec; - -extern void gistunionsubkeyvec(GISTSTATE *giststate, - IndexTuple *itvec, GistSplitVec *gsvp, int startkey); -extern void gistunionsubkey(GISTSTATE *giststate, IndexTuple *itvec, - GIST_SPLITVEC *spl, int attno); + OffsetNumber o, bool l, bool isNull); extern void GISTInitBuffer(Buffer b, uint32 f); extern void gistdentryinit(GISTSTATE *giststate, int nkey, GISTENTRY *e, Datum k, Relation r, Page pg, OffsetNumber o, - int b, bool l, bool isNull); -bool gistUserPicksplit(Relation r, GistEntryVector *entryvec, int attno, GIST_SPLITVEC *v, - IndexTuple *itup, int len, GISTSTATE *giststate); + bool l, bool isNull); + +extern float gistpenalty(GISTSTATE *giststate, int attno, + GISTENTRY *key1, bool isNull1, + GISTENTRY *key2, bool isNull2); +extern bool gistMakeUnionItVec(GISTSTATE *giststate, IndexTuple *itvec, int len, int startkey, + Datum *attr, bool *isnull ); +extern bool gistKeyIsEQ(GISTSTATE *giststate, int attno, Datum a, Datum b); +extern void gistDeCompressAtt(GISTSTATE *giststate, Relation r, IndexTuple tuple, Page p, + OffsetNumber o, GISTENTRY *attdata, bool *isnull); + +extern void gistMakeUnionKey( GISTSTATE *giststate, int attno, + GISTENTRY *entry1, bool isnull1, + GISTENTRY *entry2, bool isnull2, + Datum *dst, bool *dstisnull ); /* gistvacuum.c */ extern Datum gistbulkdelete(PG_FUNCTION_ARGS); extern Datum gistvacuumcleanup(PG_FUNCTION_ARGS); +/* gistsplit.c */ +extern void gistSplitByKey(Relation r, Page page, IndexTuple *itup, + int len, GISTSTATE *giststate, + GistSplitVector *v, GistEntryVector *entryvec, + int attno); #endif /* GIST_PRIVATE_H */ |