SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function minMap (children 1)
     ExpressionList (children 1)
      Function arrayJoin (children 1)
       ExpressionList (children 1)
        Function array (children 1)
         ExpressionList (children 2)
          Function tuple (children 1)
           ExpressionList (children 2)
            Literal Array_[UInt64_1]
            Literal Array_[NULL]
          Function tuple (children 1)
           ExpressionList (children 2)
            Literal Array_[UInt64_1]
            Literal Array_[NULL]
