SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier totimezone_op_mono
   Function equals (children 1)
    ExpressionList (children 2)
     Function toTimeZone (children 1)
      ExpressionList (children 2)
       Identifier create_time
       Literal \'UTC\'
     Literal \'2020-09-01 00:00:00\'
