DescribeQuery (children 1)
 TableExpression (children 1)
  Function urlCluster (children 1)
   ExpressionList (children 5)
    Literal \'test_cluster_one_shard_three_replicas_localhost\'
    Literal \'http://localhost:11111/test/{a,b}.tsv\'
    Literal \'TSV\'
    Literal \'auto\'
    Function headers (children 1)
     ExpressionList (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Literal \'X-ClickHouse-Database\'
        Literal \'default\'
