MaxGekk opened a new pull request #29409: URL: https://github.com/apache/spark/pull/29409
### What changes were proposed in this pull request? Fix `DaysWritable` by overriding parent's method `def get(doesTimeMatter: Boolean): Date` from `DateWritable` instead of `Date get()` because the former one uses the first one. The bug occurs because `HiveOutputWriter.write()` call `def get(doesTimeMatter: Boolean): Date` transitively with default implementation from the parent class `DateWritable` which doesn't respect date rebases and uses not initialized `daysSinceEpoch` (0 which `1970-01-01`). ### Why are the changes needed? The changes fix the bug: ```sql spark-sql> CREATE TABLE table1 (d date); spark-sql> INSERT INTO table1 VALUES (date '2020-08-11'); spark-sql> SELECT * FROM table1; 1970-01-01 ``` The expected result of the last SQL statement must be **2020-08-11** but got **1970-01-01**. ### Does this PR introduce _any_ user-facing change? Yes. After the fix, `INSERT` work correctly: ```sql spark-sql> SELECT * FROM table1; 2020-08-11 ``` ### How was this patch tested? Add new test to `HiveSerDeReadWriteSuite` ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
