SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function minus (alias length) (children 1)
     ExpressionList (children 2)
      Identifier number
      Literal UInt64_1
   ExpressionList (children 3)
    Identifier length
    Function overlay (children 1)
     ExpressionList (children 4)
      Literal \'Spark SQL\'
      Literal \'ANSI \'
      Literal UInt64_7
      Identifier length
    Function overlayUTF8 (children 1)
     ExpressionList (children 4)
      Literal \'Spark SQL和CH\'
      Literal \'ANSI \'
      Literal UInt64_7
      Identifier length
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_8
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier number