danny0405 commented on a change in pull request #1761:
URL: https://github.com/apache/calcite/pull/1761#discussion_r411104775
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File path: site/_docs/reference.md
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@@ -1875,14 +1876,44 @@ is named as "fixed windowing".
| Operator syntax | Description
|:-------------------- |:-----------
-| TUMBLE(table, DESCRIPTOR(column_name), interval [, time ]) | Indicates a
tumbling window of *interval* for *datetime*, optionally aligned at *time*.
Tumbling is applied on table in which there is a watermarked column specified
by descriptor.
+| TUMBLE(table, DESCRIPTOR(datetime), interval [, time ]) | Indicates a
tumbling window of *interval* for *datetime*, optionally aligned at *time*.
Review comment:
Either is fine, we should keep our document correct and exact.
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