#include "catalog/genbki.h"
#include "catalog/pg_database_d.h"

Include dependency graph for pg_database.h:

This graph shows which files directly or indirectly include this file:

Macros
#define	DATCONNLIMIT_UNLIMITED -1 /* no limit */

#define	DATCONNLIMIT_INVALID_DB -2

Typedefs
typedef FormData_pg_database *	Form_pg_database

Functions
	CATALOG (pg_database, 1262, DatabaseRelationId) BKI_SHARED_RELATION BKI_ROWTYPE_OID(1248

Oid datdba	BKI_DEFAULT (POSTGRES) BKI_LOOKUP(pg_authid)

Oid dattablespace	BKI_LOOKUP (pg_tablespace)

	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)

	DECLARE_OID_DEFINING_MACRO (Template0DbOid, 4)

	DECLARE_OID_DEFINING_MACRO (PostgresDbOid, 5)

Oid	get_database_oid (const char *dbname, bool missing_ok)

bool	database_is_invalid_form (Form_pg_database datform)

bool	database_is_invalid_oid (Oid dboid)

Macro Definition Documentation

◆ DATCONNLIMIT_INVALID_DB

#define DATCONNLIMIT_INVALID_DB -2

Definition at line 124 of file pg_database.h.

◆ DATCONNLIMIT_UNLIMITED

#define DATCONNLIMIT_UNLIMITED -1 /* no limit */

Definition at line 117 of file pg_database.h.

Typedef Documentation

◆ Form_pg_database

typedef FormData_pg_database* Form_pg_database

Definition at line 96 of file pg_database.h.

Function Documentation

◆ BKI_DEFAULT()

Oid datdba BKI_DEFAULT ( POSTGRES )

◆ BKI_LOOKUP()

Oid dattablespace BKI_LOOKUP ( pg_tablespace )

◆ CATALOG()

CATALOG	(	pg_database	,
		1262	,
		DatabaseRelationId
	)

◆ database_is_invalid_form()

bool database_is_invalid_form ( Form_pg_database datform )

extern

Definition at line 3215 of file dbcommands.c.

{
    return datform->datconnlimit == DATCONNLIMIT_INVALID_DB;
}

References DATCONNLIMIT_INVALID_DB, and fb().

Referenced by AlterDatabase(), database_is_invalid_oid(), get_database_list(), InitPostgres(), and vac_truncate_clog().

◆ database_is_invalid_oid()

bool database_is_invalid_oid ( Oid dboid )

extern

Definition at line 3225 of file dbcommands.c.

{
    HeapTuple   dbtup;
    Form_pg_database dbform;
    bool        invalid;
 
    dbtup = SearchSysCache1(DATABASEOID, ObjectIdGetDatum(dboid));
    if (!HeapTupleIsValid(dbtup))
        elog(ERROR, "cache lookup failed for database %u", dboid);
    dbform = (Form_pg_database) GETSTRUCT(dbtup);
 
    invalid = database_is_invalid_form(dbform);
 
    ReleaseSysCache(dbtup);
 
    return invalid;
}

References database_is_invalid_form(), elog, ERROR, fb(), GETSTRUCT(), HeapTupleIsValid, invalid, ObjectIdGetDatum(), ReleaseSysCache(), and SearchSysCache1().

Referenced by createdb().

◆ DECLARE_OID_DEFINING_MACRO() [1/2]

DECLARE_OID_DEFINING_MACRO	(	PostgresDbOid	,
		5
	)

◆ DECLARE_OID_DEFINING_MACRO() [2/2]

DECLARE_OID_DEFINING_MACRO	(	Template0DbOid	,
		4
	)

◆ DECLARE_TOAST_WITH_MACRO()

DECLARE_TOAST_WITH_MACRO	(	pg_database	,
		4177	,
		4178	,
		PgDatabaseToastTable	,
		PgDatabaseToastIndex
	)

◆ DECLARE_UNIQUE_INDEX()

DECLARE_UNIQUE_INDEX	(	pg_database_datname_index	,
		2671	,
		DatabaseNameIndexId	,
		pg_database	,
		btree(datname name_ops)
	)

◆ DECLARE_UNIQUE_INDEX_PKEY()

DECLARE_UNIQUE_INDEX_PKEY	(	pg_database_oid_index	,
		2672	,
		DatabaseOidIndexId	,
		pg_database	,
		btree(oid oid_ops)
	)

◆ get_database_oid()

Oid get_database_oid	(	const char *	dbname,
		bool	missing_ok
	)

extern

Definition at line 3168 of file dbcommands.c.

{
    Relation    pg_database;
    ScanKeyData entry[1];
    SysScanDesc scan;
    HeapTuple   dbtuple;
    Oid         oid;
 
    /*
     * There's no syscache for pg_database indexed by name, so we must look
     * the hard way.
     */
    pg_database = table_open(DatabaseRelationId, AccessShareLock);
    ScanKeyInit(&entry[0],
                Anum_pg_database_datname,
                BTEqualStrategyNumber, F_NAMEEQ,
                CStringGetDatum(dbname));
    scan = systable_beginscan(pg_database, DatabaseNameIndexId, true,
                              NULL, 1, entry);
 
    dbtuple = systable_getnext(scan);
 
    /* We assume that there can be at most one matching tuple */
    if (HeapTupleIsValid(dbtuple))
        oid = ((Form_pg_database) GETSTRUCT(dbtuple))->oid;
    else
        oid = InvalidOid;
 
    systable_endscan(scan);
    table_close(pg_database, AccessShareLock);
 
    if (!OidIsValid(oid) && !missing_ok)
        ereport(ERROR,
                (errcode(ERRCODE_UNDEFINED_DATABASE),
                 errmsg("database \"%s\" does not exist",
                        dbname)));
 
    return oid;
}

References AccessShareLock, BTEqualStrategyNumber, CStringGetDatum(), dbname, ereport, errcode(), errmsg(), ERROR, fb(), GETSTRUCT(), HeapTupleIsValid, InvalidOid, OidIsValid, ScanKeyInit(), systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by AlterDatabaseSet(), AlterRoleSet(), CommentObject(), convert_database_name(), createdb(), get_object_address_unqualified(), pg_database_size_name(), regdatabasein(), RenameDatabase(), sepgsql_database_post_create(), synchronize_slots(), and worker_spi_launch().

◆ MAKE_SYSCACHE()

MAKE_SYSCACHE	(	DATABASEOID	,
		pg_database_oid_index	,
		4
	)

Variable Documentation

◆ BKI_SCHEMA_MACRO

DatabaseRelation_Rowtype_Id BKI_SCHEMA_MACRO

Initial value:

{
    
    Oid         oid

Definition at line 29 of file pg_database.h.

◆ datallowconn

bool datallowconn

Definition at line 50 of file pg_database.h.

Referenced by check_for_connection_status(), and set_frozenxids().

◆ datconnlimit

int32 datconnlimit

Definition at line 59 of file pg_database.h.

Referenced by check_for_connection_status(), and dumpDatabase().

◆ datfrozenxid

TransactionId datfrozenxid

Definition at line 62 of file pg_database.h.

Referenced by vac_truncate_clog().

◆ dathasloginevt

bool dathasloginevt

Definition at line 53 of file pg_database.h.

◆ datistemplate

bool datistemplate

Definition at line 47 of file pg_database.h.

Referenced by dumpDatabase().

◆ datlocprovider

char datlocprovider

Definition at line 44 of file pg_database.h.

Referenced by dumpDatabase(), pg_collation_actual_version(), and pg_database_collation_actual_version().

◆ datminmxid

TransactionId datminmxid

Definition at line 65 of file pg_database.h.

Referenced by vac_truncate_clog().

◆ datname

NameData datname

Definition at line 35 of file pg_database.h.

Referenced by check_for_connection_status(), compile_database_list(), dumpDatabase(), get_database_name(), getObjectDescription(), getObjectIdentityParts(), progress_report(), RenameDatabase(), and set_frozenxids().

◆ encoding

int32 encoding

Definition at line 41 of file pg_database.h.

◆ FormData_pg_database

FormData_pg_database

Definition at line 89 of file pg_database.h.

Referenced by vac_truncate_clog().

Variables
DatabaseRelation_Rowtype_Id	BKI_SCHEMA_MACRO

NameData	datname

int32	encoding

char	datlocprovider

bool	datistemplate

bool	datallowconn

bool	dathasloginevt

int32	datconnlimit

TransactionId	datfrozenxid

TransactionId	datminmxid

	FormData_pg_database

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ DATCONNLIMIT_INVALID_DB

◆ DATCONNLIMIT_UNLIMITED

Typedef Documentation

◆ Form_pg_database

Function Documentation

◆ BKI_DEFAULT()

◆ BKI_LOOKUP()

◆ CATALOG()

◆ database_is_invalid_form()

◆ database_is_invalid_oid()

◆ DECLARE_OID_DEFINING_MACRO() [1/2]

◆ DECLARE_OID_DEFINING_MACRO() [2/2]

◆ DECLARE_TOAST_WITH_MACRO()

◆ DECLARE_UNIQUE_INDEX()

◆ DECLARE_UNIQUE_INDEX_PKEY()

◆ get_database_oid()

◆ MAKE_SYSCACHE()

Variable Documentation

◆ BKI_SCHEMA_MACRO

◆ datallowconn

◆ datconnlimit

◆ datfrozenxid

◆ dathasloginevt

◆ datistemplate

◆ datlocprovider

◆ datminmxid

◆ datname

◆ encoding

◆ FormData_pg_database