RussellSpitzer commented on a change in pull request #3375:
URL: https://github.com/apache/iceberg/pull/3375#discussion_r737537547
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File path: site/docs/spark-procedures.md
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@@ -240,6 +240,34 @@ Remove any files in the `tablelocation/data` folder which
are not known to the t
CALL catalog_name.system.remove_orphan_files(table => 'db.sample', location =>
'tablelocation/data')
```
+### `rewrite_data_files`
+
+Iceberg tracks each data file in a table. More data files leads to more
metadata stored in manifest files, and small data files causes an unnecessary
amount of metadata and less efficient queries from file open costs.
+
+Iceberg can compact data files in parallel using Spark with the
`rewriteDataFiles` action. This will combine small files into larger files to
reduce metadata overhead and runtime file open cost.
+
+#### Usage
+
+| Argument Name | Required? | Type | Description |
+|---------------|-----------|------|-------------|
+| `table` | ✔️ | string | Name of the table to update |
+| `strategy` | | string | Name of the strategy - binpack or sort |
Review comment:
Probably best to include the default here
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