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Add casts between oid and lo in contrib.

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This commit is contained in:
Hiroshi Inoue
2003-01-03 15:43:33 +00:00
parent 3c06dd7f3d
commit 4bd41a4d50
1 changed files with 8 additions and 6 deletions
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14
contrib/lo/lo.sql.in
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@@ -1,7 +1,7 @@
--
-- PostgreSQL code for LargeObjects
--
-- $Id: lo.sql.in,v 1.8 2002/10/18 18:41:20 momjian Exp $
-- $Id: lo.sql.in,v 1.8.2.1 2003/01/03 15:43:33 inoue Exp $
--
--
-- Create the data type
@@ -17,13 +17,13 @@ SET autocommit TO 'on';
CREATE FUNCTION lo_in(cstring)
RETURNS lo
AS 'MODULE_PATHNAME'
LANGUAGE 'C';
LANGUAGE 'C' IMMUTABLE;
-- used by the lo type, it returns the oid of the object
CREATE FUNCTION lo_out(lo)
RETURNS cstring
AS 'MODULE_PATHNAME'
LANGUAGE 'C';
LANGUAGE 'C' IMMUTABLE;
-- finally the type itself
CREATE TYPE lo (
@@ -37,7 +37,7 @@ CREATE TYPE lo (
CREATE FUNCTION lo_oid(lo)
RETURNS oid
AS 'MODULE_PATHNAME'
LANGUAGE 'C';
LANGUAGE 'C' IMMUTABLE;
-- same function, named to allow it to be used as a type coercion, eg:
-- CREATE TABLE a (image lo);
@@ -46,14 +46,16 @@ LANGUAGE 'C';
CREATE FUNCTION oid(lo)
RETURNS oid
AS 'MODULE_PATHNAME', 'lo_oid'
LANGUAGE 'C';
LANGUAGE 'C' IMMUTABLE;
CREATE CAST (lo as oid) WITH FUNCTION oid(lo) AS IMPLICIT;
-- this allows us to convert an oid to a managed lo object
-- ie: insert into test values (lo_import('/fullpath/file')::lo);
CREATE FUNCTION lo(oid)
RETURNS lo
AS 'MODULE_PATHNAME'
LANGUAGE 'C';
LANGUAGE 'C' IMMUTABLE;
CREATE CAST (oid as lo) WITH FUNCTION lo(oid) AS IMPLICIT;
-- This is used in triggers
CREATE FUNCTION lo_manage()