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 lc_nullable
   Function has (children 1)
    ExpressionList (children 2)
     Identifier date_time
     Function toDateTime (children 1)
      ExpressionList (children 2)
       Literal \'1970-01-01 02:00:01\'
       Literal \'Asia/Istanbul\'