Unexpected response from datanode

This from regression tests:

regression=# create table my_tab1 (a int);
CREATE TABLE
regression=#   insert into my_tab1 values(1);
INSERT 0 1
regression=#   create function f1 () returns setof my_tab1 as $$ create table my_tab2 (a int); select * from my_tab1; $$ language sql;
CREATE FUNCTION
regression=#   select f1();
ERROR:  Unexpected response from the Datanodes for 'T' message, current request type 1
CONTEXT:  SQL function "f1" statement 1
ERROR:  Unexpected response from the data nodes for 'D' message, current request type 0
regression=#

pavanvd / postgres-xl

Unexpected response from datanode #14