mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-10-07 00:47:10 +02:00
bd1ad1b019
There isn't any need to track this state on a table-wide basis, and trying to do so introduces undesirable semantic fuzziness. Move the flag to pg_index, where it clearly describes just a single index and can be immutable after index creation.
156 lines
5.7 KiB
C
156 lines
5.7 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* pg_class.h
|
|
* definition of the system "relation" relation (pg_class)
|
|
* along with the relation's initial contents.
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* src/include/catalog/pg_class.h
|
|
*
|
|
* NOTES
|
|
* the genbki.pl script reads this file and generates .bki
|
|
* information from the DATA() statements.
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
#ifndef PG_CLASS_H
|
|
#define PG_CLASS_H
|
|
|
|
#include "catalog/genbki.h"
|
|
|
|
/* ----------------
|
|
* pg_class definition. cpp turns this into
|
|
* typedef struct FormData_pg_class
|
|
* ----------------
|
|
*/
|
|
#define RelationRelationId 1259
|
|
#define RelationRelation_Rowtype_Id 83
|
|
|
|
CATALOG(pg_class,1259) BKI_BOOTSTRAP BKI_ROWTYPE_OID(83) BKI_SCHEMA_MACRO
|
|
{
|
|
NameData relname; /* class name */
|
|
Oid relnamespace; /* OID of namespace containing this class */
|
|
Oid reltype; /* OID of entry in pg_type for table's
|
|
* implicit row type */
|
|
Oid reloftype; /* OID of entry in pg_type for underlying
|
|
* composite type */
|
|
Oid relowner; /* class owner */
|
|
Oid relam; /* index access method; 0 if not an index */
|
|
Oid relfilenode; /* identifier of physical storage file */
|
|
|
|
/* relfilenode == 0 means it is a "mapped" relation, see relmapper.c */
|
|
Oid reltablespace; /* identifier of table space for relation */
|
|
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 relpersistence; /* see RELPERSISTENCE_xxx constants */
|
|
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 */
|
|
bool relhasoids; /* T if we generate OIDs for rows of rel */
|
|
bool relhaspkey; /* has (or has had) PRIMARY KEY index */
|
|
bool relhasrules; /* has (or has had) any rules */
|
|
bool relhastriggers; /* has (or has had) any TRIGGERs */
|
|
bool relhassubclass; /* has (or has had) derived classes */
|
|
TransactionId relfrozenxid; /* all Xids < this are frozen in this rel */
|
|
|
|
/*
|
|
* VARIABLE LENGTH FIELDS start here. These fields may be NULL, too.
|
|
*
|
|
* NOTE: these fields are not present in a relcache entry's rd_rel field.
|
|
*/
|
|
|
|
aclitem relacl[1]; /* access permissions */
|
|
text reloptions[1]; /* access-method-specific options */
|
|
} FormData_pg_class;
|
|
|
|
/* Size of fixed part of pg_class tuples, not counting var-length fields */
|
|
#define CLASS_TUPLE_SIZE \
|
|
(offsetof(FormData_pg_class,relfrozenxid) + sizeof(TransactionId))
|
|
|
|
/* ----------------
|
|
* 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
|
|
* ----------------
|
|
*/
|
|
|
|
#define Natts_pg_class 26
|
|
#define Anum_pg_class_relname 1
|
|
#define Anum_pg_class_relnamespace 2
|
|
#define Anum_pg_class_reltype 3
|
|
#define Anum_pg_class_reloftype 4
|
|
#define Anum_pg_class_relowner 5
|
|
#define Anum_pg_class_relam 6
|
|
#define Anum_pg_class_relfilenode 7
|
|
#define Anum_pg_class_reltablespace 8
|
|
#define Anum_pg_class_relpages 9
|
|
#define Anum_pg_class_reltuples 10
|
|
#define Anum_pg_class_reltoastrelid 11
|
|
#define Anum_pg_class_reltoastidxid 12
|
|
#define Anum_pg_class_relhasindex 13
|
|
#define Anum_pg_class_relisshared 14
|
|
#define Anum_pg_class_relpersistence 15
|
|
#define Anum_pg_class_relkind 16
|
|
#define Anum_pg_class_relnatts 17
|
|
#define Anum_pg_class_relchecks 18
|
|
#define Anum_pg_class_relhasoids 19
|
|
#define Anum_pg_class_relhaspkey 20
|
|
#define Anum_pg_class_relhasrules 21
|
|
#define Anum_pg_class_relhastriggers 22
|
|
#define Anum_pg_class_relhassubclass 23
|
|
#define Anum_pg_class_relfrozenxid 24
|
|
#define Anum_pg_class_relacl 25
|
|
#define Anum_pg_class_reloptions 26
|
|
|
|
/* ----------------
|
|
* initial contents of pg_class
|
|
*
|
|
* NOTE: only "bootstrapped" relations need to be declared here. Be sure that
|
|
* the OIDs listed here match those given in their CATALOG macros, and that
|
|
* the relnatts values are correct.
|
|
* ----------------
|
|
*/
|
|
|
|
/* Note: "3" in the relfrozenxid column stands for FirstNormalTransactionId */
|
|
DATA(insert OID = 1247 ( pg_type PGNSP 71 0 PGUID 0 0 0 0 0 0 0 f f p r 28 0 t f f f f 3 _null_ _null_ ));
|
|
DESCR("");
|
|
DATA(insert OID = 1249 ( pg_attribute PGNSP 75 0 PGUID 0 0 0 0 0 0 0 f f p r 19 0 f f f f f 3 _null_ _null_ ));
|
|
DESCR("");
|
|
DATA(insert OID = 1255 ( pg_proc PGNSP 81 0 PGUID 0 0 0 0 0 0 0 f f p r 25 0 t f f f f 3 _null_ _null_ ));
|
|
DESCR("");
|
|
DATA(insert OID = 1259 ( pg_class PGNSP 83 0 PGUID 0 0 0 0 0 0 0 f f p r 26 0 t f f f f 3 _null_ _null_ ));
|
|
DESCR("");
|
|
|
|
#define RELKIND_INDEX 'i' /* secondary index */
|
|
#define RELKIND_RELATION 'r' /* ordinary cataloged 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 */
|
|
#define RELKIND_COMPOSITE_TYPE 'c' /* composite type */
|
|
#define RELKIND_FOREIGN_TABLE 'f' /* foreign table */
|
|
|
|
#define RELPERSISTENCE_PERMANENT 'p'
|
|
#define RELPERSISTENCE_UNLOGGED 'u'
|
|
#define RELPERSISTENCE_TEMP 't'
|
|
|
|
#endif /* PG_CLASS_H */
|