/*-------------------------------------------------------------------------
*
* pg_database . h
* definition of the " database " system catalog ( pg_database )
*
*
* Portions Copyright ( c ) 1996 - 2025 , PostgreSQL Global Development Group
* Portions Copyright ( c ) 1994 , Regents of the University of California
*
* src / include / catalog / pg_database . h
*
* NOTES
* The Catalog . pm module reads this file and derives schema
* information .
*
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
*/
#ifndef PG_DATABASE_H
#define PG_DATABASE_H
#include "catalog/genbki.h"
#include "catalog/pg_database_d.h" /* IWYU pragma: export */
/* ----------------
* pg_database definition . cpp turns this into
* typedef struct FormData_pg_database
* - - - - - - - - - - - - - - - -
*/
CATALOG(pg_database,1262 ,DatabaseRelationId) BKI_SHARED_RELATION BKI_ROWTYPE_OID(1248 ,DatabaseRelation_Rowtype_Id) BKI_SCHEMA_MACRO
{
/* oid */
Oid oid;
/* database name */
NameData datname;
/* owner of database */
Oid datdba BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* character encoding */
int32 encoding;
/* locale provider, see pg_collation.collprovider */
char datlocprovider;
/* allowed as CREATE DATABASE template? */
bool datistemplate;
/* new connections allowed? */
bool datallowconn;
/* database has login event triggers? */
bool dathasloginevt;
/*
* Max connections allowed . Negative values have special meaning , see
* DATCONNLIMIT_ * defines below .
*/
int32 datconnlimit;
/* all Xids < this are frozen in this DB */
TransactionId datfrozenxid;
/* all multixacts in the DB are >= this */
TransactionId datminmxid;
/* default table space for this DB */
Oid dattablespace BKI_LOOKUP(pg_tablespace);
#ifdef CATALOG_VARLEN /* variable-length fields start here */
/* LC_COLLATE setting */
text datcollate BKI_FORCE_NOT_NULL;
/* LC_CTYPE setting */
text datctype BKI_FORCE_NOT_NULL;
/* ICU locale ID */
text datlocale;
/* ICU collation rules */
text daticurules;
/* provider-dependent version of collation data */
text datcollversion BKI_DEFAULT(_null_);
/* access permissions */
aclitem datacl[1 ];
#endif
} FormData_pg_database;
/* ----------------
* Form_pg_database corresponds to a pointer to a tuple with
* the format of pg_database relation .
* - - - - - - - - - - - - - - - -
*/
typedef FormData_pg_database *Form_pg_database;
DECLARE_TOAST_WITH_MACRO(pg_database, 4177 , 4178 , PgDatabaseToastTable, PgDatabaseToastIndex);
DECLARE_UNIQUE_INDEX(pg_database_datname_index, 2671 , DatabaseNameIndexId, pg_database, btree(datname name_ops));
DECLARE_UNIQUE_INDEX_PKEY(pg_database_oid_index, 2672 , DatabaseOidIndexId, pg_database, btree(oid oid_ops));
MAKE_SYSCACHE(DATABASEOID, pg_database_oid_index, 4 );
/*
* pg_database . dat contains an entry for template1 , but not for the template0
* or postgres databases , because those are created later in initdb .
* However , we still want to manually assign the OIDs for template0 and
* postgres , so declare those here .
*/
DECLARE_OID_DEFINING_MACRO(Template0DbOid, 4 );
DECLARE_OID_DEFINING_MACRO(PostgresDbOid, 5 );
/*
* Special values for pg_database . datconnlimit . Normal values are > = 0 .
*/
#define DATCONNLIMIT_UNLIMITED -1 /* no limit */
/*
* A database is set to invalid partway through being dropped . Using
* datconnlimit = - 2 for this purpose isn ' t particularly clean , but is
* backpatchable .
*/
#define DATCONNLIMIT_INVALID_DB -2
extern bool database_is_invalid_form(Form_pg_database datform);
extern bool database_is_invalid_oid(Oid dboid);
#endif /* PG_DATABASE_H */
Messung V0.5 in Prozent C=93 H=94 G=93
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-08-08)
¤
*© Formatika GbR, Deutschland