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Add current_database().

> Quick system function to pull out the current database.
>
> I've used this a number of times to allow stored procedures to find out
> where they are.  Especially useful for those that do logging or hit a
> remote server.
>
> It's called current_database() to match with current_user().

It's also a necessity for an informational schema.  The catalog
(database) name is required in a number of places.

Rod Taylor
This commit is contained in:
Bruce Momjian
2002-08-20 04:46:00 +00:00
parent f736fdb022
commit de9801fc62
4 changed files with 30 additions and 4 deletions

View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: builtins.h,v 1.192 2002/08/16 23:01:21 tgl Exp $
* $Id: builtins.h,v 1.193 2002/08/20 04:46:00 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -315,6 +315,7 @@ extern Datum nonnullvalue(PG_FUNCTION_ARGS);
extern Datum oidrand(PG_FUNCTION_ARGS);
extern Datum oidsrand(PG_FUNCTION_ARGS);
extern Datum userfntest(PG_FUNCTION_ARGS);
extern Datum current_database(PG_FUNCTION_ARGS);
/* not_in.c */
extern Datum int4notin(PG_FUNCTION_ARGS);