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diff --git a/contrib/lo/lo--1.1.sql b/contrib/lo/lo--1.1.sql
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+/* contrib/lo/lo--1.1.sql */
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION lo" to load this file. \quit
+
+--
+--	Create the data type ... now just a domain over OID
+--
+
+CREATE DOMAIN lo AS pg_catalog.oid;
+
+--
+-- For backwards compatibility, define a function named lo_oid.
+--
+-- The other functions that formerly existed are not needed because
+-- the implicit casts between a domain and its underlying type handle them.
+--
+CREATE FUNCTION lo_oid(lo) RETURNS pg_catalog.oid AS
+'SELECT $1::pg_catalog.oid' LANGUAGE SQL STRICT IMMUTABLE PARALLEL SAFE;
+
+-- This is used in triggers
+CREATE FUNCTION lo_manage()
+RETURNS pg_catalog.trigger
+AS 'MODULE_PATHNAME'
+LANGUAGE C;