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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2021/01/05 08:02:05 UTC
[GitHub] [iceberg] jun-he commented on a change in pull request #1141: Document field-id requirements for partition specs
jun-he commented on a change in pull request #1141:
URL: https://github.com/apache/iceberg/pull/1141#discussion_r551770601
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File path: site/docs/spec.md
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@@ -170,6 +170,7 @@ Partition specs capture the transform from table data to partition values. This
| **`month`** | Extract a date or timestamp month, as months from 1970-01-01 | `date`, `timestamp(tz)` | `int` |
| **`day`** | Extract a date or timestamp day, as days from 1970-01-01 | `date`, `timestamp(tz)` | `date` |
| **`hour`** | Extract a timestamp hour, as hours from 1970-01-01 00:00:00 | `timestamp(tz)` | `int` |
+| **`alwaysNull`** | Always produces `null` (the void transform) | Any | `void` |
Review comment:
Thanks for the comments. Fixed.
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