head	1.19;
access;
symbols
	Version_2_1:1.14
	Version_2:1.10
	C_Demo_1:1.5;
locks; strict;
comment	@ * @;


1.19
date	92.03.11.02.23.49;	author mer;	state Exp;
branches;
next	1.18;

1.18
date	92.03.02.21.31.26;	author mer;	state Exp;
branches;
next	1.17;

1.17
date	91.12.04.01.58.30;	author glass;	state Exp;
branches;
next	1.16;

1.16
date	91.09.06.12.26.46;	author hong;	state Exp;
branches;
next	1.15;

1.15
date	91.04.28.09.15.15;	author cimarron;	state Exp;
branches;
next	1.14;

1.14
date	91.02.19.13.56.30;	author mao;	state Exp;
branches;
next	1.13;

1.13
date	90.09.18.21.51.34;	author hong;	state Exp;
branches;
next	1.12;

1.12
date	90.08.17.08.54.15;	author cimarron;	state Exp;
branches;
next	1.11;

1.11
date	90.08.08.08.24.17;	author cimarron;	state Exp;
branches;
next	1.10;

1.10
date	90.04.02.11.20.08;	author hong;	state Version_2;
branches;
next	1.9;

1.9
date	90.03.01.15.40.10;	author cimarron;	state Exp;
branches;
next	1.8;

1.8
date	89.09.25.11.24.51;	author cimarron;	state Exp;
branches;
next	1.7;

1.7
date	89.09.21.19.13.09;	author hirohama;	state Exp;
branches;
next	1.6;

1.6
date	89.09.18.08.01.54;	author cimarron;	state Exp;
branches;
next	1.5;

1.5
date	89.09.05.17.11.10;	author mao;	state C_Demo_1;
branches;
next	1.4;

1.4
date	89.04.12.19.55.56;	author dillon;	state Exp;
branches;
next	1.3;

1.3
date	89.03.01.17.08.36;	author goh;	state Stab;
branches;
next	1.2;

1.2
date	89.01.31.16.33.01;	author dillon;	state Exp;
branches;
next	1.1;

1.1
date	89.01.17.05.54.45;	author cimarron;	state Exp;
branches;
next	;


desc
@@


1.19
log
@define an accessor macro for lock info field of reldesc
@
text
@/*
 * rel.h --
 *	POSTGRES relation descriptor definitions.
 */

#ifndef	RelIncluded		/* Include this file only once */
#define RelIncluded	1

/*
 * Identification:
 */
#define REL_H	"$Header: /u/mer/pg/src/lib/H/utils/RCS/rel.h,v 1.18 1992/03/02 21:31:26 mer Exp mer $"

#include "tmp/postgres.h"

#include "storage/fd.h"
#include "access/istrat.h"
#include "access/tupdesc.h"

#include "catalog/pg_am.h"
#include "catalog/pg_operator.h"
#include "catalog/pg_relation.h"

typedef struct RelationData {
	File			rd_fd;		/* open file descriptor */
	int                     rd_nblocks;     /* number of blocks in rel */
	uint16			rd_refcnt;	/* reference count */
	bool			rd_ismem;	/* rel is in-memory only */
	bool			rd_isnailed;	/* rel is nailed in cache */
	AccessMethodTupleForm	rd_am;		/* AM tuple */
	RelationTupleForm	rd_rel;		/* RELATION tuple */
	ObjectId		rd_id;		/* relations's object id */
	Pointer			lockInfo;	/* ptr. to misc. info. */
	TupleDescriptorData	rd_att;		/* tuple desciptor */
/* VARIABLE LENGTH ARRAY AT END OF STRUCT */
/*	IndexStrategy		rd_is;	*/	/* index strategy */
} RelationData;

typedef RelationData	*Relation;

/* ----------------
 *	RelationPtr is used in the executor to support index scans
 *	where we have to keep track of several index relations in an
 *	array.  -cim 9/10/89
 * ----------------
 */
typedef Relation	*RelationPtr;

#define InvalidRelation	((Relation)NULL)

typedef char	ArchiveMode;

/*
 * RelationIsValid --
 *	True iff relation descriptor is valid.
 */
#define	RelationIsValid(relation) PointerIsValid(relation)

/*
 * RelationGetSystemPort --
 *	Returns system port of a relation.
 *
 * Note:
 *	Assumes relation descriptor is valid.
 */
#define RelationGetSystemPort(relation) ((relation)->rd_fd)

/*
 * RelationGetLockInfo --
 *      Returns the lock information structure in the reldesc
 *
 */
#define RelationGetLockInfo(relation) ((relation)->lockInfo)

/*
 * RelationHasReferenceCountZero --
 *	True iff relation reference count is zero.
 *
 * Note:
 *	Assumes relation descriptor is valid.
 */
#define RelationHasReferenceCountZero(relation) \
	((bool)((relation)->rd_refcnt == 0))

/*
 * RelationSetReferenceCount --
 *	Sets relation reference count.
 */
#define RelationSetReferenceCount(relation,count) ((relation)->rd_refcnt = count)

/*
 * RelationIncrementReferenceCount --
 *	Increments relation reference count.
 */
#define RelationIncrementReferenceCount(relation) ((relation)->rd_refcnt += 1);

/*
 * RelationDecrementReferenceCount --
 *	Decrements relation reference count.
 */
#define RelationDecrementReferenceCount(relation) ((relation)->rd_refcnt -= 1)

/*
 * RelationGetAccessMethodTupleForm --
 *	Returns access method attribute values for a relation.
 *
 * Note:
 *	Assumes relation descriptor is valid.
 */
#define RelationGetAccessMethodTupleForm(relation) ((relation)->rd_am)

/*
 * RelationGetRelationTupleForm --
 *	Returns relation attribute values for a relation.
 *
 * Note:
 *	Assumes relation descriptor is valid.
 */
#define RelationGetRelationTupleForm(relation) ((relation)->rd_rel)

/*
 * RelationGetTupleDescriptor --
 *	Returns tuple descriptor for a relation.
 *
 * Note:
 *	Assumes relation descriptor is valid.
 */
#define RelationGetTupleDescriptor(relation) (&(relation)->rd_att)

/* 
 * RelationGetRelationId --
 *
 *  returns the object id of the relation
 *
 */
#define RelationGetRelationId(relation) ((relation)->rd_id)

/*
 * RelationGetFile --
 *
 *    Returns the open File decscriptor
 */
#define RelationGetFile(relation) ((relation)->rd_fd)


/*
 * RelationGetRelationName --
 *
 *    Returns a Relation Name
 */
#define RelationGetRelationName(relation) (&(relation)->rd_rel->relname)

/*
 * RelationGetRelationName --
 *
 *    Returns a the number of attributes.
 */
#define RelationGetNumberOfAttributes(relation) ((relation)->rd_rel->relnatts)

/*
 * RelationGetIndexStrategy --
 *	Returns index strategy for a relation.
 *
 * Note:
 *	Assumes relation descriptor is valid.
 *	Assumes relation descriptor is for an index relation.
 */
extern
IndexStrategy
RelationGetIndexStrategy ARGS((
	Relation	relation
));

/*
 * RelationSetIndexSupport --
 *	Sets index strategy and support info for a relation.
 *
 * Note:
 *	Assumes relation descriptor is a valid pointer to sufficient space.
 *	Assumes index strategy is valid.  Assumes support is valid if non-
 *	NULL.
 */
extern
void
RelationSetIndexSupport ARGS((
	Relation	relation,
	IndexStrategy	strategy,
	RegProcedure	*support
));

#endif	/* !defined(RelIncluded) */
@


1.18
log
@make many silly one line functions macros (see rel.c)
@
text
@d12 1
a12 1
#define REL_H	"$Header: /users/mer/pg/src/lib/H/utils/RCS/rel.h,v 1.17 1991/12/04 01:58:30 glass Exp mer $"
d67 7
@


1.17
log
@unterminated comment
@
text
@d12 1
a12 1
#define REL_H	"$Header: lib/H/utils/RCS/rel.h,v 1.16 91/09/06 12:26:46 hong Exp Locker: glass $"
d66 1
a66 5
extern
File		/* XXX SystemPort of "os.h" */
RelationGetSystemPort ARGS((
	Relation	relation
));
d75 2
a76 5
extern
bool
RelationHasReferenceCountZero ARGS((
	Relation	relation
));
d82 1
a82 6
extern
void
RelationSetReferenceCount ARGS((
	Relation	relation,
	Count		count
));
d88 1
a88 5
extern
void
RelationIncrementReferenceCount ARGS((
	Relation	relation
));
d94 1
a94 5
extern
void
RelationDecrementReferenceCount ARGS((
	Relation	relation
));
d103 1
a103 5
extern
AccessMethodTupleForm
RelationGetAccessMethodTupleForm ARGS((
	Relation	relation
));
d112 1
a112 5
extern
RelationTupleForm
RelationGetRelationTupleForm ARGS((
	Relation	relation
));
d121 31
a151 5
extern
TupleDescriptor
RelationGetTupleDescriptor ARGS((
	Relation	relation
));
a181 44
));

/* 
 * RelationGetRelationId --
 *
 *  returns the object id of the relation
 *
 */

extern
ObjectId
RelationGetRelationId ARGS((
	Relation	relation
));

/*
 * RelationGetFile --
 *
 *    Returns the open File decscriptor
 */

extern
File
RelationGetFile ARGS((
	Relation	relation
));


/*
 * RelationGetRelationName --
 *
 *    Returns a Relation Name
 */

extern
Name
RelationGetRelationName ARGS((
	Relation	relation
));

extern
AttributeNumber
RelationGetNumberOfAttributes ARGS((
	Relation relation
@


1.16
log
@added a new field to relation descriptor
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.15 91/04/28 09:15:15 cimarron Exp Locker: hong $"
d36 1
a36 1
/*	IndexStrategy		rd_is;		/* index strategy */
@


1.15
log
@Converted IsValid code into macros and added an improved NodeIsType scheme
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.14 91/02/19 13:56:30 mao Exp Locker: cimarron $"
d29 1
@


1.14
log
@fix rtree interface
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.13 90/09/18 21:51:34 hong Exp Locker: mao $"
d56 1
a56 5
extern
bool
RelationIsValid ARGS ((
	Relation	relation
));
@


1.13
log
@added a field to Relation structure, to avoid unnecessary seek's
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.12 90/08/17 08:54:15 cimarron Exp Locker: cimarron $"
d173 2
a174 2
 * RelationSetIndexStrategy --
 *	Sets index strategy for a relation.
d178 2
a179 1
 *	Assumes index strategy is valid.
d183 1
a183 1
RelationSetIndexStrategy ARGS((
d185 2
a186 1
	IndexStrategy	strategy
@


1.12
log
@added pathnames to #include statements
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.11 90/08/08 08:24:17 cimarron Exp Locker: cimarron $"
d26 1
@


1.11
log
@reorganized some header files
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.10 90/04/02 11:20:08 hong Exp Locker: hong $"
d14 1
a14 1
#include "postgres.h"
d16 3
a18 3
#include "fd.h"
#include "istrat.h"
#include "tupdesc.h"
@


1.10
log
@minor change for striping
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.8 89/09/25 11:24:51 cimarron Exp $"
d14 1
a14 3
#ifndef C_H
#include "c.h"
#endif
d16 7
a22 15
#ifndef	CAT_H
# include "cat.h"
#endif
#ifndef	FD_H
# include "fd.h"
#endif
#ifndef	ISTRAT_H
# include "istrat.h"
#endif
#ifndef	OID_H
# include "oid.h"
#endif
#ifndef	TUPDESC_H
# include "tupdesc.h"
#endif
@


1.9
log
@general changes to add parallelism support, in-memory
relations, and various code cleanups.
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.8 89/09/25 11:24:51 cimarron Exp Locker: hong $"
d79 1
a79 1
int		/* XXX SystemPort of "os.h" */
@


1.8
log
@moved dynamic symbol stuff to syms.h
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.7 89/09/21 19:13:09 hirohama Exp $"
d37 1
@


1.7
log
@added ...SYMBOLS declarations
miscellaneous cleanup
@
text
@d12 1
a12 1
#define REL_H	"$Header: RCS/rel.h,v 1.6 89/09/18 08:01:54 cimarron Exp Locker: hirohama $"
a237 18

#define REL_SYMBOLS \
	SymbolDecl(RelationIsValid, "_RelationIsValid"), \
	SymbolDecl(RelationGetSystemPort, "_RelationGetSystemPort"), \
	SymbolDecl(RelationGetAccessMethodTupleForm, "_RelationGetAccessMethodTupleForm"), \
	SymbolDecl(RelationGetRelationTupleForm, "_RelationGetRelationTupleForm"), \
	SymbolDecl(RelationGetTupleDescriptor, "_RelationGetTupleDescriptor"), \
	SymbolDecl(RelationGetIndexStrategy, "_RelationGetIndexStrategy"), \
	SymbolDecl(RelationGetRelationId, "_RelationGetRelationId"), \
	SymbolDecl(RelationGetFile, "_RelationGetFile"), \
	SymbolDecl(RelationGetRelationName, "_RelationGetRelationName"), \
	SymbolDecl(RelationGetNumberOfAttributes, "_RelationGetNumberOfAttributes")
/*
 *	SymbolDecl(RelationHasReferenceCountZero, "_RelationHasReferenceCountZero")
 *	SymbolDecl(RelationIncrementReferenceCount, "_RelationIncrementReferenceCount")
 *	SymbolDecl(RelationDecrementReferenceCount, "_RelationDecrementReferenceCount")
 *	SymbolDecl(RelationSetIndexStrategy, "_RelationSetIndexStrategy")
 */
@


1.6
log
@added code to support index scans in the executor.
@
text
@a3 3
 *
 * Identification:
 *	$Header: RCS/rel.h,v 1.4 89/04/12 19:55:56 dillon Exp $
d6 1
a6 1
#ifndef	RelIncluded	/* Include this file only once. */
d9 5
d18 15
a32 1
#include "os.h"
a33 6
#include "oid.h"
#include "cat.h"
#include "istrat.h"
#include "tupdesc.h"
#include "fd.h"

d78 1
a78 1
SystemPort
d237 20
a256 1
));				  
@


1.5
log
@Working version of C-only demo
@
text
@d6 1
a6 1
 *	$Header: /usr6/postgres/mao/postgres/src/lib/H/RCS/rel.h,v 1.4 89/04/12 19:55:56 dillon Exp $
d37 8
@


1.4
log
@c.h
@
text
@d6 1
a6 1
 *	$Header: /usr6/postgres/dillon/ptree/src/lib/H/RCS/rel.h,v 1.3 89/03/01 17:08:36 goh Stab $
@


1.3
log
@added RelationGetNumberOfAttributes
@
text
@d6 1
a6 1
 *	$Header: rel.h,v 1.2 89/01/31 16:33:01 goh Locked $
d12 1
d14 1
@


1.2
log
@txfer from old tree
@
text
@d6 1
a6 1
 *	$Header: rel.h,v 1.8 88/08/26 11:59:50 dillon Locked $
d213 5
@


1.1
log
@Initial revision
@
text
@a0 27

; /*
; * 
; * POSTGRES Data Base Management System
; * 
; * Copyright (c) 1988 Regents of the University of California
; * 
; * Permission to use, copy, modify, and distribute this software and its
; * documentation for educational, research, and non-profit purposes and
; * without fee is hereby granted, provided that the above copyright
; * notice appear in all copies and that both that copyright notice and
; * this permission notice appear in supporting documentation, and that
; * the name of the University of California not be used in advertising
; * or publicity pertaining to distribution of the software without
; * specific, written prior permission.  Permission to incorporate this
; * software into commercial products can be obtained from the Campus
; * Software Office, 295 Evans Hall, University of California, Berkeley,
; * Ca., 94720 provided only that the the requestor give the University
; * of California a free licence to any derived software for educational
; * and research purposes.  The University of California makes no
; * representations about the suitability of this software for any
; * purpose.  It is provided "as is" without express or implied warranty.
; * 
; */



d6 1
a6 1
 *	$Header: rel.h,v 1.1 88/11/11 16:37:22 postgres Exp $
@