emkornfield commented on code in PR #496: URL: https://github.com/apache/parquet-format/pull/496#discussion_r2231673045
########## LogicalTypes.md: ########## @@ -539,6 +544,27 @@ The sort order used for `INTERVAL` is undefined. When writing data, no min/max statistics should be saved for this type and if such non-compliant statistics are found during reading, they must be ignored. +#### YEAR_MONTH_INTERVAL + +`YEAR_MONTH_INTERVAL` is used to represent a year-month time interval, such as +`4 years and 6 months`. It must annotate an `int32` that stores the total number +of months as a signed integer, which represents the interval and can be negative. +The time duration is independent of any timezone. + +#### DURATION + +`DURATION` is used to represent a span of time, such as `5 days`. It must +annotate an `int64` value that stores the total number of time units for the +duration. The value is a signed integer and can be negative to indicate backward duration. +The duration is purely a measure of time and is independent of any time zone. + +The `DURATION` type takes `unit` as a parameter, and the value must be one of +`MILLIS`, `MICROS` or `NANOS`. + +Duration of 1 day is defined exactly of 24 hours, regardless of the specific number of Review Comment: nit: I suggest moving this to be in the same a paragraph as `The duration is purely a measure of time and is independent of any time zone.` (split this paragraph off from the first paragraph). -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
