snleee opened a new issue, #9822: URL: https://github.com/apache/pinot/issues/9822
Java's `SimpleDateFormat` (https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html) has a `X` letter to represent the time zone in the format of `-08:00`. The behavior of Pinot's `SIMPLE_DATE_FORMAT` in `DateTimeFieldSpec` is actually different from Java. Here is the code to reproduce: ``` public static void main(String[] args) throws ParseException { String input = "2022-11-16 15:22:37.123+00:00"; // This is working and this is the expected behavior based on the Java documentation. String pattern = "yyyy-MM-dd HH:mm:ss.SSSX"; SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern); Date date = simpleDateFormat.parse(input); System.out.println(date.toInstant().toEpochMilli()); // This is not working. But, it is supposed to work if we follow the convention for SimpleDateFormat try { String format = "SIMPLE_DATE_FORMAT|yyyy-MM-dd HH:mm:ss.SSSX"; DateTimeFormatSpec dateTimeFormatSpec = new DateTimeFormatSpec(format); long millis = dateTimeFormatSpec.getDateTimeFormatter().parseMillis(input); System.out.println(millis); } catch (Exception e) { // not working System.out.println("failed"); } // This is working and this is the expected behavior based on the documentation from JAVA. try { String pattern2 = "yyyy-MM-dd HH:mm:ss.SSSZ"; simpleDateFormat = new SimpleDateFormat(pattern2); date = simpleDateFormat.parse(input); System.out.println(date.toInstant().toEpochMilli()); } catch (Exception e) { // not working System.out.println("failed"); } // This working but Java's SimpleDateFormat's definition for `Z` doesn't include "-00:00" so it supposed to fail. String format2 = "SIMPLE_DATE_FORMAT|yyyy-MM-dd HH:mm:ss.SSSZ"; DateTimeFormatSpec dateTimeFormatSpec = new DateTimeFormatSpec(format2); long millis2 = dateTimeFormatSpec.getDateTimeFormatter().parseMillis(input); System.out.println(millis2); } ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
