text: -- @author prabhd 
  -- @created 2012-12-05 12:00:00 
  -- @modified 2012-12-05 12:00:00 
  -- @tags dml 
  -- @db_name dmldb
  -- @description union_test3: INTERSECT with generate_series
  \echo --start_ignore
  set gp_enable_column_oriented_table=on;
  \echo --end_ignore
  
  SELECT COUNT(*) FROM dml_union_r;
  SELECT COUNT(*) FROM (SELECT generate_series(1,10) INTERSECT SELECT generate_series(1,100))foo;
  INSERT INTO dml_union_r SELECT generate_series(1,10) INTERSECT SELECT generate_series(1,100);
  SELECT COUNT(*) FROM dml_union_r;
  
  