SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function round (alias r) (children 1)
     ExpressionList (children 1)
      Function multiply (children 1)
       ExpressionList (children 2)
        Function divide (children 1)
         ExpressionList (children 2)
          Function sum (children 1)
           ExpressionList (children 1)
            Function multiIf (children 1)
             ExpressionList (children 3)
              Function in (children 1)
               ExpressionList (children 2)
                Identifier s
                Literal Tuple_(\'a\', \'b\')
              Literal UInt64_1
              Literal UInt64_0
          Function count (children 1)
           ExpressionList
        Literal UInt64_100
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function cluster (children 1)
       ExpressionList (children 3)
        Literal \'test_cluster_two_shards\'
        Function currentDatabase (children 1)
         ExpressionList
        Identifier t
