rdblue commented on a change in pull request #1141:
URL: https://github.com/apache/iceberg/pull/1141#discussion_r551649962
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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:
The transform name for the spec is `void`, not `alwaysNull`. That's just
the name we use in Java where `void` is a reserved keyword.
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