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/*-------------------------------------------------------------------------
*
* pg_class.h
* definition of the system "relation" relation (pg_class)
* along with the relation's initial contents.
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_class.h,v 1.63 2002/03/26 19:16:35 tgl Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
* information from the DATA() statements.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_CLASS_H
#define PG_CLASS_H
/* ----------------
* postgres.h contains the system type definintions and the
* CATALOG(), BOOTSTRAP and DATA() sugar words so this file
* can be read by both genbki.sh and the C compiler.
* ----------------
*/
/* ----------------
* pg_class definition. cpp turns this into
* typedef struct FormData_pg_class
* ----------------
*/
/* ----------------
* This structure is actually variable-length (the last attribute is
* a POSTGRES array). Hence, sizeof(FormData_pg_class) does not
* necessarily match the actual length of the structure. Furthermore
* relacl may be a NULL field. Hence, you MUST use heap_getattr()
* to get the relacl field ... and don't forget to check isNull.
* ----------------
*/
CATALOG(pg_class) BOOTSTRAP
{
NameData relname; /* class name */
Oid relnamespace; /* OID of namespace containing this class */
Oid reltype; /* OID of associated entry in pg_type */
int4 relowner; /* class owner */
Oid relam; /* index access method; 0 if not an index */
Oid relfilenode; /* identifier of physical storage file */
int4 relpages; /* # of blocks (not always up-to-date) */
float4 reltuples; /* # of tuples (not always up-to-date) */
Oid reltoastrelid; /* OID of toast table; 0 if none */
Oid reltoastidxid; /* if toast table, OID of chunk_id index */
bool relhasindex; /* T if has (or has had) any indexes */
bool relisshared; /* T if shared across databases */
char relkind; /* see RELKIND_xxx constants below */
int2 relnatts; /* number of user attributes */
/*
* Class pg_attribute must contain exactly "relnatts" user attributes
* (with attnums ranging from 1 to relnatts) for this class. It may
* also contain entries with negative attnums for system attributes.
*/
int2 relchecks; /* # of CHECK constraints for class */
int2 reltriggers; /* # of TRIGGERs */
int2 relukeys; /* # of Unique keys (not used) */
int2 relfkeys; /* # of FOREIGN KEYs (not used) */
int2 relrefs; /* # of references to this rel (not used) */
bool relhasoids; /* T if we generate OIDs for rows of rel */
bool relhaspkey; /* has PRIMARY KEY index */
bool relhasrules; /* has associated rules */
bool relhassubclass; /* has derived classes */
/*
* relacl may or may not be present, see note above!
*/
aclitem relacl[1]; /* we declare this just for the catalog */
} FormData_pg_class;
/* Size of fixed part of pg_class tuples, not counting relacl or padding */
#define CLASS_TUPLE_SIZE \
(offsetof(FormData_pg_class,relhassubclass) + sizeof(bool))
/* ----------------
* Form_pg_class corresponds to a pointer to a tuple with
* the format of pg_class relation.
* ----------------
*/
typedef FormData_pg_class *Form_pg_class;
/* ----------------
* compiler constants for pg_class
* ----------------
*/
/* ----------------
* Natts_pg_class_fixed is used to tell routines that insert new
* pg_class tuples (as opposed to replacing old ones) that there's no
* relacl field. This is a kluge.
* ----------------
*/
#define Natts_pg_class_fixed 23
#define Natts_pg_class 24
#define Anum_pg_class_relname 1
#define Anum_pg_class_relnamespace 2
#define Anum_pg_class_reltype 3
#define Anum_pg_class_relowner 4
#define Anum_pg_class_relam 5
#define Anum_pg_class_relfilenode 6
#define Anum_pg_class_relpages 7
#define Anum_pg_class_reltuples 8
#define Anum_pg_class_reltoastrelid 9
#define Anum_pg_class_reltoastidxid 10
#define Anum_pg_class_relhasindex 11
#define Anum_pg_class_relisshared 12
#define Anum_pg_class_relkind 13
#define Anum_pg_class_relnatts 14
#define Anum_pg_class_relchecks 15
#define Anum_pg_class_reltriggers 16
#define Anum_pg_class_relukeys 17
#define Anum_pg_class_relfkeys 18
#define Anum_pg_class_relrefs 19
#define Anum_pg_class_relhasoids 20
#define Anum_pg_class_relhaspkey 21
#define Anum_pg_class_relhasrules 22
#define Anum_pg_class_relhassubclass 23
#define Anum_pg_class_relacl 24
/* ----------------
* initial contents of pg_class
*
* NOTE: only "bootstrapped" relations need to be declared here.
* ----------------
*/
DATA(insert OID = 1247 ( pg_type PGNSP 71 PGUID 0 1247 0 0 0 0 f f r 22 0 0 0 0 0 t f f f _null_ ));
DESCR("");
DATA(insert OID = 1249 ( pg_attribute PGNSP 75 PGUID 0 1249 0 0 0 0 f f r 15 0 0 0 0 0 f f f f _null_ ));
DESCR("");
DATA(insert OID = 1255 ( pg_proc PGNSP 81 PGUID 0 1255 0 0 0 0 f f r 18 0 0 0 0 0 t f f f _null_ ));
DESCR("");
DATA(insert OID = 1259 ( pg_class PGNSP 83 PGUID 0 1259 0 0 0 0 f f r 24 0 0 0 0 0 t f f f _null_ ));
DESCR("");
DATA(insert OID = 1260 ( pg_shadow PGNSP 86 PGUID 0 1260 0 0 0 0 f t r 9 0 0 0 0 0 f f f f _null_ ));
DESCR("");
DATA(insert OID = 1261 ( pg_group PGNSP 87 PGUID 0 1261 0 0 0 0 f t r 3 0 0 0 0 0 f f f f _null_ ));
DESCR("");
DATA(insert OID = 1262 ( pg_database PGNSP 88 PGUID 0 1262 0 0 0 0 f t r 10 0 0 0 0 0 t f f f _null_ ));
DESCR("");
DATA(insert OID = 376 ( pg_xactlock PGNSP 0 PGUID 0 0 0 0 0 0 f t s 1 0 0 0 0 0 f f f f _null_ ));
DESCR("");
#define RelOid_pg_type 1247
#define RelOid_pg_attribute 1249
#define RelOid_pg_proc 1255
#define RelOid_pg_class 1259
#define RelOid_pg_shadow 1260
#define RelOid_pg_group 1261
#define RelOid_pg_database 1262
/* Xact lock pseudo-table */
#define XactLockTableId 376
#define RELKIND_INDEX 'i' /* secondary index */
#define RELKIND_RELATION 'r' /* ordinary cataloged heap */
#define RELKIND_SPECIAL 's' /* special (non-heap) */
#define RELKIND_SEQUENCE 'S' /* SEQUENCE relation */
#define RELKIND_UNCATALOGED 'u' /* temporary heap */
#define RELKIND_TOASTVALUE 't' /* moved off huge values */
#define RELKIND_VIEW 'v' /* view */
#endif /* PG_CLASS_H */
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