SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 3)
    Function if (alias value) (children 1)
     ExpressionList (children 3)
      Function greater (children 1)
       ExpressionList (children 2)
        Identifier number
        Literal UInt64_1
      Identifier number
      Literal NULL
    Identifier number (alias offset)
    Function neighbor (alias neighbor) (children 1)
     ExpressionList (children 2)
      Identifier value
      Identifier offset
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_3