David Li created ARROW-13549:
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Summary: [C++] Implement kernel to extract date/time from timestamp
Key: ARROW-13549
URL: https://issues.apache.org/jira/browse/ARROW-13549
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: David Li
Add a kernel that can extract just the date or the time from a timestamp.
This should behave like Postgres DATE/CAST(... as TIME), or Pandas
Timestamp.date/Timestamp.time.
Extracting the date appears to be doable with an unsafe cast, but it might be
more convenient to have an explicit kernel (and an unsafe cast, at least in the
Python bindings, disables all checks, not just the check we care about).
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