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Add relation fork support to pg_relation_size() function. You can now pass

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name of a fork ('main' or 'fsm', at the moment) to pg_relation_size() to
get the size of a specific fork. Defaults to 'main', if none given.

While we're at it, modify pg_relation_size to take a regclass as argument,
instead of separate variants taking oid and name. This change is
transparent to typical use where the table name is passed as a string
literal, like pg_relation_size('table'), but will break queries like
pg_relation_size(namecol), where namecol is of type name. text-type input
still works, and using a non-schema-qualified table name is not very
reliable anyway, so this is unlikely to break anyone's queries in practice.
This commit is contained in:
Heikki Linnakangas
2008-10-03 07:33:10 +00:00
parent 2cc1633a35
commit 706a308806
6 changed files with 76 additions and 76 deletions
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8
src/include/utils/builtins.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.320 2008/09/06 00:01:25 tgl Exp $
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.321 2008/10/03 07:33:10 heikki Exp $
*
*-------------------------------------------------------------------------
*/
@ -389,10 +389,8 @@ extern Datum pg_tablespace_size_oid(PG_FUNCTION_ARGS);
extern Datum pg_tablespace_size_name(PG_FUNCTION_ARGS);
extern Datum pg_database_size_oid(PG_FUNCTION_ARGS);
extern Datum pg_database_size_name(PG_FUNCTION_ARGS);
extern Datum pg_relation_size_oid(PG_FUNCTION_ARGS);
extern Datum pg_relation_size_name(PG_FUNCTION_ARGS);
extern Datum pg_total_relation_size_oid(PG_FUNCTION_ARGS);
extern Datum pg_total_relation_size_name(PG_FUNCTION_ARGS);
extern Datum pg_relation_size(PG_FUNCTION_ARGS);
extern Datum pg_total_relation_size(PG_FUNCTION_ARGS);
extern Datum pg_size_pretty(PG_FUNCTION_ARGS);
/* genfile.c */