indexing.h
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:5k
- /*-------------------------------------------------------------------------
- *
- * indexing.h
- * This include provides some definitions to support indexing
- * on system catalogs
- *
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * $Id: indexing.h,v 1.19 1999/02/13 23:21:03 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
- #ifndef INDEXING_H
- #define INDEXING_H
- #include <access/htup.h>
- #include <utils/rel.h>
- /*
- * Some definitions for indices on pg_attribute
- */
- #define Num_pg_attr_indices 3
- #define Num_pg_proc_indices 3
- #define Num_pg_type_indices 2
- #define Num_pg_class_indices 2
- #define Num_pg_attrdef_indices 1
- #define Num_pg_relcheck_indices 1
- #define Num_pg_trigger_indices 1
- #define Num_pg_description_indices 1
- /*
- * Names of indices on system catalogs
- */
- #define AttributeNameIndex "pg_attribute_relid_attnam_index"
- #define AttributeNumIndex "pg_attribute_relid_attnum_index"
- #define AttributeRelidIndex "pg_attribute_attrelid_index"
- #define ProcedureOidIndex "pg_proc_oid_index"
- #define ProcedureNameIndex "pg_proc_proname_narg_type_index"
- #define ProcedureSrcIndex "pg_proc_prosrc_index"
- #define TypeOidIndex "pg_type_oid_index"
- #define TypeNameIndex "pg_type_typname_index"
- #define ClassOidIndex "pg_class_oid_index"
- #define ClassNameIndex "pg_class_relname_index"
- #define AttrDefaultIndex "pg_attrdef_adrelid_index"
- #define RelCheckIndex "pg_relcheck_rcrelid_index"
- #define TriggerRelidIndex "pg_trigger_tgrelid_index"
- #define DescriptionObjIndex "pg_description_objoid_index"
- extern char *Name_pg_attr_indices[];
- extern char *Name_pg_proc_indices[];
- extern char *Name_pg_type_indices[];
- extern char *Name_pg_class_indices[];
- extern char *Name_pg_attrdef_indices[];
- extern char *Name_pg_relcheck_indices[];
- extern char *Name_pg_trigger_indices[];
- extern char *Name_pg_description_indices[];
- extern char *IndexedCatalogNames[];
- /*
- * indexing.c prototypes
- *
- * Functions for each index to perform the necessary scan on a cache miss.
- */
- extern void CatalogOpenIndices(int nIndices, char **names, Relation *idescs);
- extern void CatalogCloseIndices(int nIndices, Relation *idescs);
- extern void CatalogIndexInsert(Relation *idescs,
- int nIndices,
- Relation heapRelation,
- HeapTuple heapTuple);
- extern bool CatalogHasIndex(char *catName, Oid catId);
- extern HeapTuple AttributeNameIndexScan(Relation heapRelation,
- Oid relid,
- char *attname);
- extern HeapTuple AttributeNumIndexScan(Relation heapRelation,
- Oid relid,
- AttrNumber attnum);
- extern HeapTuple ProcedureOidIndexScan(Relation heapRelation, Oid procId);
- extern HeapTuple ProcedureNameIndexScan(Relation heapRelation,
- char *procName, int2 nargs, Oid *argTypes);
- extern HeapTuple ProcedureSrcIndexScan(Relation heapRelation, text *procSrc);
- extern HeapTuple TypeOidIndexScan(Relation heapRelation, Oid typeId);
- extern HeapTuple TypeNameIndexScan(Relation heapRelation, char *typeName);
- extern HeapTuple ClassNameIndexScan(Relation heapRelation, char *relName);
- extern HeapTuple ClassOidIndexScan(Relation heapRelation, Oid relId);
- /*
- * What follows are lines processed by genbki.sh to create the statements
- * the bootstrap parser will turn into DefineIndex commands.
- *
- * The keyword is DECLARE_INDEX every thing after that is just like in a
- * normal specification of the 'define index' POSTQUEL command.
- */
- DECLARE_INDEX(pg_attribute_relid_attnam_index on pg_attribute using btree(attrelid oid_ops, attname name_ops));
- DECLARE_INDEX(pg_attribute_relid_attnum_index on pg_attribute using btree(attrelid oid_ops, attnum int2_ops));
- DECLARE_INDEX(pg_attribute_attrelid_index on pg_attribute using btree(attrelid oid_ops));
- DECLARE_INDEX(pg_proc_oid_index on pg_proc using btree(oid oid_ops));
- DECLARE_INDEX(pg_proc_proname_narg_type_index on pg_proc using btree(proname name_ops, pronargs int2_ops, proargtypes oid8_ops));
- DECLARE_INDEX(pg_proc_prosrc_index on pg_proc using btree(prosrc text_ops));
- DECLARE_INDEX(pg_type_oid_index on pg_type using btree(oid oid_ops));
- DECLARE_INDEX(pg_type_typname_index on pg_type using btree(typname name_ops));
- DECLARE_INDEX(pg_class_oid_index on pg_class using btree(oid oid_ops));
- DECLARE_INDEX(pg_class_relname_index on pg_class using btree(relname name_ops));
- DECLARE_INDEX(pg_attrdef_adrelid_index on pg_attrdef using btree(adrelid oid_ops));
- DECLARE_INDEX(pg_relcheck_rcrelid_index on pg_relcheck using btree(rcrelid oid_ops));
- DECLARE_INDEX(pg_trigger_tgrelid_index on pg_trigger using btree(tgrelid oid_ops));
- DECLARE_INDEX(pg_description_objoid_index on pg_description using btree(objoid oid_ops));
- /* now build indices in the initialization scripts */
- BUILD_INDICES
- #endif /* INDEXING_H */