1996-08-28 03:59:28 +02:00
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/*-------------------------------------------------------------------------
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*
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1999-02-14 00:22:53 +01:00
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* lsyscache.h
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1999-08-09 05:13:31 +02:00
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* Convenience routines for common queries in the system catalog cache.
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1996-08-28 03:59:28 +02:00
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*
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2000-01-26 06:58:53 +01:00
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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1996-08-28 03:59:28 +02:00
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*
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2000-10-05 21:48:34 +02:00
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* $Id: lsyscache.h,v 1.26 2000/10/05 19:48:34 momjian Exp $
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1996-08-28 03:59:28 +02:00
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*
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*-------------------------------------------------------------------------
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*/
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1997-09-07 07:04:48 +02:00
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#ifndef LSYSCACHE_H
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#define LSYSCACHE_H
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1996-08-28 03:59:28 +02:00
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1999-07-16 01:04:24 +02:00
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#include "access/htup.h"
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1996-08-28 03:59:28 +02:00
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2000-08-13 04:50:35 +02:00
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extern bool op_class(Oid opno, Oid opclass, Oid amopid);
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1997-09-08 04:41:22 +02:00
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extern char *get_attname(Oid relid, AttrNumber attnum);
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1996-08-28 03:59:28 +02:00
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extern AttrNumber get_attnum(Oid relid, char *attname);
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1997-09-08 04:41:22 +02:00
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extern Oid get_atttype(Oid relid, AttrNumber attnum);
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extern bool get_attisset(Oid relid, char *attname);
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1998-07-12 23:29:40 +02:00
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extern int32 get_atttypmod(Oid relid, AttrNumber attnum);
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2000-10-05 21:48:34 +02:00
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extern double get_attdispersion(Oid relid, AttrNumber attnum,
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2000-04-12 19:17:23 +02:00
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double min_estimate);
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2000-08-13 04:50:35 +02:00
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extern RegProcedure get_opcode(Oid opno);
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extern char *get_opname(Oid opno);
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extern bool op_mergejoinable(Oid opno, Oid ltype, Oid rtype,
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1997-09-08 23:56:23 +02:00
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Oid *leftOp, Oid *rightOp);
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2000-08-13 04:50:35 +02:00
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extern Oid op_hashjoinable(Oid opno, Oid ltype, Oid rtype);
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extern bool op_iscachable(Oid opno);
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1996-08-28 03:59:28 +02:00
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extern HeapTuple get_operator_tuple(Oid opno);
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2000-08-13 04:50:35 +02:00
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extern Oid get_commutator(Oid opno);
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extern Oid get_negator(Oid opno);
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extern RegProcedure get_oprrest(Oid opno);
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extern RegProcedure get_oprjoin(Oid opno);
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1999-08-16 04:06:25 +02:00
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extern Oid get_func_rettype(Oid funcid);
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2000-08-13 04:50:35 +02:00
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extern bool func_iscachable(Oid funcid);
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1997-09-08 04:41:22 +02:00
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extern char *get_rel_name(Oid relid);
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extern int16 get_typlen(Oid typid);
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extern bool get_typbyval(Oid typid);
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1999-08-09 05:13:31 +02:00
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extern Datum get_typdefault(Oid typid);
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1996-08-28 03:59:28 +02:00
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1998-09-01 06:40:42 +02:00
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#endif /* LSYSCACHE_H */
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