SelectWithUnionQuery (children 3)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Identifier number
    Identifier number
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier system.numbers (alias alias277)
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier number
        Identifier alias277.number
   Literal UInt64_102400
 Identifier Null
 Set
