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Multi-column GIN indexes. Teodor Sigaev

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This commit is contained in:
Tom Lane
2008-07-11 21:06:29 +00:00
parent 2d6599f471
commit 27cb66fdfe
15 changed files with 465 additions and 182 deletions
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55
src/include/access/gin.h
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@ -4,7 +4,7 @@
*
* Copyright (c) 2006-2008, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/include/access/gin.h,v 1.22 2008/06/19 00:46:05 alvherre Exp $
* $PostgreSQL: pgsql/src/include/access/gin.h,v 1.23 2008/07/11 21:06:29 tgl Exp $
*--------------------------------------------------------------------------
*/
@ -140,15 +140,18 @@ typedef struct
typedef struct GinState
{
FmgrInfo compareFn;
FmgrInfo extractValueFn;
FmgrInfo extractQueryFn;
FmgrInfo consistentFn;
FmgrInfo comparePartialFn; /* optional method */
FmgrInfo compareFn[INDEX_MAX_KEYS];
FmgrInfo extractValueFn[INDEX_MAX_KEYS];
FmgrInfo extractQueryFn[INDEX_MAX_KEYS];
FmgrInfo consistentFn[INDEX_MAX_KEYS];
FmgrInfo comparePartialFn[INDEX_MAX_KEYS]; /* optional method */
bool canPartialMatch; /* can opclass perform partial
* match (prefix search)? */
TupleDesc tupdesc;
bool canPartialMatch[INDEX_MAX_KEYS]; /* can opclass perform partial
* match (prefix search)? */
TupleDesc tupdesc[INDEX_MAX_KEYS];
TupleDesc origTupdesc;
bool oneCol;
} GinState;
/* XLog stuff */
@ -235,12 +238,16 @@ extern void initGinState(GinState *state, Relation index);
extern Buffer GinNewBuffer(Relation index);
extern void GinInitBuffer(Buffer b, uint32 f);
extern void GinInitPage(Page page, uint32 f, Size pageSize);
extern int compareEntries(GinState *ginstate, Datum a, Datum b);
extern Datum *extractEntriesS(GinState *ginstate, Datum value,
extern int compareEntries(GinState *ginstate, OffsetNumber attnum, Datum a, Datum b);
extern int compareAttEntries(GinState *ginstate, OffsetNumber attnum_a, Datum a,
OffsetNumber attnum_b, Datum b);
extern Datum *extractEntriesS(GinState *ginstate, OffsetNumber attnum, Datum value,
int32 *nentries, bool *needUnique);
extern Datum *extractEntriesSU(GinState *ginstate, Datum value, int32 *nentries);
extern Datum *extractEntriesSU(GinState *ginstate, OffsetNumber attnum, Datum value, int32 *nentries);
extern Page GinPageGetCopyPage(Page page);
extern Datum gin_index_getattr(GinState *ginstate, IndexTuple tuple);
extern OffsetNumber gintuple_get_attrnum(GinState *ginstate, IndexTuple tuple);
/* gininsert.c */
extern Datum ginbuild(PG_FUNCTION_ARGS);
extern Datum gininsert(PG_FUNCTION_ARGS);
@ -291,6 +298,7 @@ typedef struct GinBtreeData
BlockNumber rightblkno;
/* Entry options */
OffsetNumber entryAttnum;
Datum entryValue;
IndexTuple entry;
bool isDelete;
@ -310,9 +318,10 @@ extern void ginInsertValue(GinBtree btree, GinBtreeStack *stack);
extern void findParents(GinBtree btree, GinBtreeStack *stack, BlockNumber rootBlkno);
/* ginentrypage.c */
extern IndexTuple GinFormTuple(GinState *ginstate, Datum key, ItemPointerData *ipd, uint32 nipd);
extern Datum ginGetHighKey(GinState *ginstate, Page page);
extern void prepareEntryScan(GinBtree btree, Relation index, Datum value, GinState *ginstate);
extern IndexTuple GinFormTuple(GinState *ginstate, OffsetNumber attnum, Datum key,
ItemPointerData *ipd, uint32 nipd);
extern void prepareEntryScan(GinBtree btree, Relation index, OffsetNumber attnum,
Datum value, GinState *ginstate);
extern void entryFillRoot(GinBtree btree, Buffer root, Buffer lbuf, Buffer rbuf);
extern IndexTuple ginPageGetLinkItup(Buffer buf);
@ -359,6 +368,7 @@ typedef struct GinScanEntryData
/* entry, got from extractQueryFn */
Datum entry;
OffsetNumber attnum;
/* Current page in posting tree */
Buffer buffer;
@ -396,6 +406,7 @@ typedef struct GinScanKeyData
/* for calling consistentFn(GinScanKey->entryRes, strategy, query) */
StrategyNumber strategy;
Datum query;
OffsetNumber attnum;
ItemPointerData curItem;
bool firstCall;
@ -450,11 +461,12 @@ extern Datum ginarrayconsistent(PG_FUNCTION_ARGS);
/* ginbulk.c */
typedef struct EntryAccumulator
{
Datum value;
uint32 length;
uint32 number;
OffsetNumber attnum;
Datum value;
uint32 length;
uint32 number;
ItemPointerData *list;
bool shouldSort;
bool shouldSort;
struct EntryAccumulator *left;
struct EntryAccumulator *right;
} EntryAccumulator;
@ -474,7 +486,8 @@ typedef struct
extern void ginInitBA(BuildAccumulator *accum);
extern void ginInsertRecordBA(BuildAccumulator *accum,
ItemPointer heapptr, Datum *entries, int32 nentry);
extern ItemPointerData *ginGetEntry(BuildAccumulator *accum, Datum *entry, uint32 *n);
ItemPointer heapptr,
OffsetNumber attnum, Datum *entries, int32 nentry);
extern ItemPointerData *ginGetEntry(BuildAccumulator *accum, OffsetNumber *attnum, Datum *entry, uint32 *n);
#endif