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per-column options for btree indexes. The planner's support for this is still pretty rudimentary; it does not yet know how to plan mergejoins with nondefault ordering options. The documentation is pretty rudimentary, too. I'll work on improving that stuff later. Note incompatible change from prior behavior: ORDER BY ... USING will now be rejected if the operator is not a less-than or greater-than member of some btree opclass. This prevents less-than-sane behavior if an operator that doesn't actually define a proper sort ordering is selected.
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*-------------------------------------------------------------------------
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*
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* index.h
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* prototypes for catalog/index.c.
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*
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*
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* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/index.h,v 1.73 2007/01/09 02:14:15 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef INDEX_H
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#define INDEX_H
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#include "nodes/execnodes.h"
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#define DEFAULT_INDEX_TYPE "btree"
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/* Typedef for callback function for IndexBuildHeapScan */
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typedef void (*IndexBuildCallback) (Relation index,
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HeapTuple htup,
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Datum *values,
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bool *isnull,
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bool tupleIsAlive,
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void *state);
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extern Oid index_create(Oid heapRelationId,
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const char *indexRelationName,
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Oid indexRelationId,
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IndexInfo *indexInfo,
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Oid accessMethodObjectId,
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Oid tableSpaceId,
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Oid *classObjectId,
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int16 *coloptions,
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Datum reloptions,
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bool isprimary,
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bool isconstraint,
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bool allow_system_table_mods,
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bool skip_build,
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bool concurrent);
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extern void index_drop(Oid indexId);
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extern IndexInfo *BuildIndexInfo(Relation index);
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extern void FormIndexDatum(IndexInfo *indexInfo,
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TupleTableSlot *slot,
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EState *estate,
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Datum *values,
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bool *isnull);
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extern void setNewRelfilenode(Relation relation);
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extern void index_build(Relation heapRelation,
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Relation indexRelation,
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IndexInfo *indexInfo,
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bool isprimary);
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extern double IndexBuildHeapScan(Relation heapRelation,
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Relation indexRelation,
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IndexInfo *indexInfo,
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IndexBuildCallback callback,
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void *callback_state);
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extern void validate_index(Oid heapId, Oid indexId, Snapshot snapshot);
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extern void reindex_index(Oid indexId);
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extern bool reindex_relation(Oid relid, bool toast_too);
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#endif /* INDEX_H */
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