yiyutian1 opened a new pull request, #25871: URL: https://github.com/apache/flink/pull/25871
What is the purpose of the change To update the documentation for DATE_FORMAT, which is not accurate now. The current function behaviors are: DATE_FORMAT(timestamp, string) eventually calls formatTimestamp(TimestampData ts, String format, ZoneId zoneId) in DateTimeUtils.java, which uses [DateTimeFormatter](https://issues.apache.org/jira/browse/FLINK-36941#L724). DATE_FORMAT(string, string) eventually calls formatTimestampStringWithOffset(String dateStr, String fromFormat, String toFormat, TimeZone tz, long offsetMills) in DateTimeUtils.java, which uses [SimpleDateFormat](https://github.com/apache/flink/blob/1523f2c2062b860a2abfe75f8ead276bb161d64a/flink-table/flink-table-common/src/main/java/org/apache/flink/table/utils/DateTimeUtils.java#L743). Brief change log Update documentation for DATE_FORMAT. Add additional python tests for specific DATE_FORMAT functions. Verifying this change Please make sure both new and modified tests in this PR follow [the conventions for tests defined in our code quality guide](https://flink.apache.org/how-to-contribute/code-style-and-quality-common/#7-testing). Added python tests for for specific DATE_FORMAT functions. Does this pull request potentially affect one of the following parts: Dependencies (does it add or upgrade a dependency): (no) The public API, i.e., is any changed class annotated with @Public(Evolving): (no) The serializers: (no) The runtime per-record code paths (performance sensitive): (no) Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no) The S3 file system connector: (no) Documentation Does this pull request introduce a new feature? (no) If yes, how is the feature documented? (not applicable) -- 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]
