[GitHub] [arrow-rs] tustvold commented on issue #2984: Implicity setting of converted type is missing then setting

[GitBox <gi...@apache.org>]

tustvold commented on issue #2984:
URL: https://github.com/apache/arrow-rs/issues/2984#issuecomment-1296336652

   The PrimitiveTypeBuilder shoudl add the converted type automatically when applicable - https://github.com/apache/arrow-rs/blob/master/parquet/src/schema/types.rs#L307.
   
   However, according to the [format docs](https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#deprecated-time-convertedtype).
   
   > TIME_MILLIS is the deprecated ConvertedType counterpart of a TIME logical type that is UTC normalized and has MILLIS precision. Like the logical type counterpart, it must annotate an int32.
   >
   > TIME_MICROS is the deprecated ConvertedType counterpart of a TIME logical type that is UTC normalized and has MICROS precision. Like the logical type counterpart, it must annotate an int64.
   
   Are any of the following possible:
   
   * The time unit is nanoseconds
   * The timeunit is milliseconds but being written as Int64
   * The timeunit is microseconds but being written as Int32


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