pg_database.h

Go to the documentation of this file.

/*-------------------------------------------------------------------------
 *
 * pg_database.h
 *    definition of the "database" system catalog (pg_database)
 *
 *
 * Portions Copyright (c) 1996-2020, 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"

/* ----------------
 *      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(PGUID);

    /* character encoding */
    int32       encoding;

    /* LC_COLLATE setting */
    NameData    datcollate;

    /* LC_CTYPE setting */
    NameData    datctype;

    /* allowed as CREATE DATABASE template? */
    bool        datistemplate;

    /* new connections allowed? */
    bool        datallowconn;

    /* max connections allowed (-1=no limit) */
    int32       datconnlimit;

    /* highest OID to consider a system OID */
    Oid         datlastsysoid;

    /* 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 */
    /* 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;

#endif                          /* PG_DATABASE_H */