Zoltan Ivanfi created PARQUET-1487:
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Summary: Do not write original type for timezone-agnostic
timestamps
Key: PARQUET-1487
URL: https://issues.apache.org/jira/browse/PARQUET-1487
Project: Parquet
Issue Type: Improvement
Components: parquet-mr
Affects Versions: 1.11.0
Reporter: Zoltan Ivanfi
Assignee: Nandor Kollar
Fix For: 1.11.0
Historically, the TIMESTAMP_MILLIS and TIMESTAMP_MICROS original types used for
the INT64 physical type were always UTC-normalized.
The new TIMESTAMP logical type allows both UTC-normalized and timezone-agnostic
timestamps and writes the legacy original types for compatibility reasons.
However, the latter should only be written for UTC-normalized timestamps,
because legacy readers are not prepared to handle timezone-agnostic timestamps
correctly and the original type would just be misleading.
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