hutiefang76 opened a new pull request, #11878: URL: https://github.com/apache/gravitino/pull/11878
### What changes were proposed in this pull request? Fix ClickHouse partition expression round-tripping for day transforms and nested date wrappers: - format Gravitino day transforms as `toYYYYMMDD(column)` instead of `toDate(column)` - parse `toYYYYMMDD(column)` back to a day transform - unwrap a supported `toDate(...)` wrapper when parsing expressions such as `toYYYYMM(toDate(event_time))` - update the ClickHouse catalog documentation for supported partition functions ### Why are the changes needed? Fixes #11841. Without this change, a ClickHouse partition expression like `toYYYYMM(toDate(event_time))` is parsed with `toDate(event_time)` as the field name. Also, day transforms are formatted as `toDate(...)`, which does not round-trip cleanly with the ClickHouse day partition form described in the issue. ### Does this PR introduce _any_ user-facing change? Yes. ClickHouse day partition transforms are now generated as `toYYYYMMDD(column)`. Existing `toDate(column)` partition expressions are still accepted when reading metadata. ### How was this patch tested? - `JAVA_HOME=$(/usr/libexec/java_home -v 17) ./gradlew :catalogs-contrib:catalog-jdbc-clickhouse:test --tests org.apache.gravitino.catalog.clickhouse.operations.TestClickHouseTableOperationsPartitioning -PskipITs` - `JAVA_HOME=$(/usr/libexec/java_home -v 17) ./gradlew :catalogs-contrib:catalog-jdbc-clickhouse:spotlessCheck -PskipITs` - `git diff --check` -- 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]
