Maxim Gekk created SPARK-31630: ---------------------------------- Summary: Skip timestamp rebasing after 1900-01-01 Key: SPARK-31630 URL: https://issues.apache.org/jira/browse/SPARK-31630 Project: Spark Issue Type: Bug Components: SQL Affects Versions: 3.0.0, 3.1.0 Reporter: Maxim Gekk
The conversions of Catalyst's DATE/TIMESTAMPS to/from Java's types java.sql.Date/java.sql.Timestamps have almost the same implementation except addition rebasing op. If we look at switch and diffs arrays of all available time zones, we can detect that there is a time point when all diffs are 0. This is 1900-01-01 00:00:00Z. So, we can compare input micros with the time point and skip conversion for modern timestamps. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org