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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 -- 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 -- Create the data type
@ -17,13 +17,13 @@ SET autocommit TO 'on';
CREATE FUNCTION lo_in(cstring) CREATE FUNCTION lo_in(cstring)
RETURNS lo RETURNS lo
AS 'MODULE_PATHNAME' AS 'MODULE_PATHNAME'
LANGUAGE 'C'; LANGUAGE 'C' IMMUTABLE;
-- used by the lo type, it returns the oid of the object -- used by the lo type, it returns the oid of the object
CREATE FUNCTION lo_out(lo) CREATE FUNCTION lo_out(lo)
RETURNS cstring RETURNS cstring
AS 'MODULE_PATHNAME' AS 'MODULE_PATHNAME'
LANGUAGE 'C'; LANGUAGE 'C' IMMUTABLE;
-- finally the type itself -- finally the type itself
CREATE TYPE lo ( CREATE TYPE lo (
@ -37,7 +37,7 @@ CREATE TYPE lo (
CREATE FUNCTION lo_oid(lo) CREATE FUNCTION lo_oid(lo)
RETURNS oid RETURNS oid
AS 'MODULE_PATHNAME' AS 'MODULE_PATHNAME'
LANGUAGE 'C'; LANGUAGE 'C' IMMUTABLE;
-- same function, named to allow it to be used as a type coercion, eg: -- same function, named to allow it to be used as a type coercion, eg:
-- CREATE TABLE a (image lo); -- CREATE TABLE a (image lo);
@ -46,14 +46,16 @@ LANGUAGE 'C';
CREATE FUNCTION oid(lo) CREATE FUNCTION oid(lo)
RETURNS oid RETURNS oid
AS 'MODULE_PATHNAME', 'lo_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 -- this allows us to convert an oid to a managed lo object
-- ie: insert into test values (lo_import('/fullpath/file')::lo); -- ie: insert into test values (lo_import('/fullpath/file')::lo);
CREATE FUNCTION lo(oid) CREATE FUNCTION lo(oid)
RETURNS lo RETURNS lo
AS 'MODULE_PATHNAME' AS 'MODULE_PATHNAME'
LANGUAGE 'C'; LANGUAGE 'C' IMMUTABLE;
CREATE CAST (oid as lo) WITH FUNCTION lo(oid) AS IMPLICIT;
-- This is used in triggers -- This is used in triggers
CREATE FUNCTION lo_manage() CREATE FUNCTION lo_manage()