Fully qualify function calls

scripts-available/CDB_QueryTables.sql

@@ -2,7 +2,7 @@
 --
 -- Requires PostgreSQL 9.x+
 --
-CREATE OR REPLACE FUNCTION CDB_QueryTablesText(query text)
+CREATE OR REPLACE FUNCTION @extschema@.CDB_QueryTablesText(query text)
 RETURNS text[]
 AS $$
 DECLARE
@@ -14,7 +14,7 @@ BEGIN
 
   tables := '{}';
 
-  FOR rec IN SELECT CDB_QueryStatements(query) q LOOP
+  FOR rec IN SELECT @extschema@.CDB_QueryStatements(query) q LOOP
     BEGIN
       EXECUTE 'EXPLAIN (FORMAT XML, VERBOSE) ' || rec.q INTO STRICT exp;
     EXCEPTION WHEN syntax_error THEN
@@ -66,10 +66,10 @@ $$ LANGUAGE 'plpgsql' VOLATILE STRICT PARALLEL UNSAFE;
 
 -- Keep CDB_QueryTables with same signature for backwards compatibility.
 -- It should probably be removed in the future.
-CREATE OR REPLACE FUNCTION CDB_QueryTables(query text)
+CREATE OR REPLACE FUNCTION @extschema@.CDB_QueryTables(query text)
 RETURNS name[]
 AS $$
 BEGIN
-  RETURN CDB_QueryTablesText(query)::name[];
+  RETURN @extschema@.CDB_QueryTablesText(query)::name[];
 END
 $$ LANGUAGE 'plpgsql' VOLATILE STRICT PARALLEL UNSAFE;