rui-mo opened a new issue, #1433:
URL: https://github.com/apache/incubator-gluten/issues/1433

   Phase 1:
   - [x] Timestamp data conversions, including r2c, c2r etc.
   - [x] Timestamp split
   - [x] Timestamp Scan (TODO: support timestamp int96 type)
   https://github.com/oap-project/velox/pull/205
   
   Phase 2:
   - [ ] Timestamp functions
   - ToUnixTimestamp
   - UnixTimestamp
   - GetTimestamp
   - Hour
   - Minute
   - Second
   - SecondWithFraction
   - SecondsToTimestamp
   - MillisToTimestamp
   - MicrosToTimestamp
   - Cast from timestamp
   - Cast to timestamp
   - CurrentTimestamp
   - Now
   - LocalTimestamp
   - CurrentBatchTimestamp
   - CastTimestampNTZToLong
   - FromUnixTime
   - TimeAdd
   - DatetimeSub
   - FromUTCTimestamp
   - ToUTCTimestamp
   - TimestampAddYMInterval
   - ParseToTimestamp
   - TruncTimestamp
   - MakeTimestamp
   - SubtractTimestamps
   - SubtractTimestamps
   - TimestampAdd
   - TimestampDiff
   
   - [ ] Timezone
   - ConvertTimezone
   
   Phase 3: 
   
   - [ ] Enable operators including Filter/Project/Sort/Agg/Hash-partition 
Shuffle.
   
   


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