SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function urlCluster (children 1)
       ExpressionList (children 2)
        Literal \'test_cluster_two_shards_localhost\'
        Literal \'http://localhost:11111/test/{a,b,c}.tsv\'
   ExpressionList (children 3)
    OrderByElement (children 1)
     Identifier c1
    OrderByElement (children 1)
     Identifier c2
    OrderByElement (children 1)
     Identifier c3