RussellSpitzer commented on code in PR #12115:
URL: https://github.com/apache/iceberg/pull/12115#discussion_r1932567338
##########
docs/docs/spark-procedures.md:
##########
@@ -972,4 +972,91 @@ CALL catalog_name.system.compute_table_stats(table =>
'my_table', snapshot_id =>
Collect statistics of the snapshot with id `snap1` of table `my_table` for
columns `col1` and `col2`
```sql
CALL catalog_name.system.compute_table_stats(table => 'my_table', snapshot_id
=> 'snap1', columns => array('col1', 'col2'));
-```
\ No newline at end of file
+```
+
+## Table Replication
+
+The `rewrite-table-path` assists in moving or copying an Iceberg table from
one location to another.
+
+### `rewrite-table-path`
+
+This procedure writes a new copy of the Iceberg table's metadata files where
every path has had its prefix replaced.
+The newly rewritten metadata files, along with data files, enable moving or
coping an Iceberg table to a new location.
+After copying both metadata and data to the desired location, the replicated
iceberg
+table will appear identical to the source table, including snapshot history,
schema and partition specs.
+
+!!! info
+ This procedure only creates metadata for an existing Iceberg table
modified for a new location. Procedure results can be consumed for copying the
files.
+ Copying/Moving metadata and data files to the new location is not part of
this procedure.
+
+
+| Argument Name | Required? | default
| Type | Description
|
+|--------------------|-----------|------------------------------------------------|--------|-------------------------------------------------------------------------|
+| `table` | ✔️ |
| string | Name of the table
|
+| `source_prefix` | ✔️ |
| string | The existing prefix to be replaced
|
+| `target_prefix` | ✔️ |
| string | The replacement prefix for `source_prefix`
|
+| `start_version` | | first metadata.json in table's metadata log
| string | The name or path to the chronologically first metadata.json to
rewrite. |
+| `end_version` | | latest metadata.json
| string | The name or path to the chronologically last metadata.json to
rewrite |
+| `staging_location` | | new directory under table's metadata
directory | string | The output location for newly modified metadata files
|
+
+
+#### Modes of operation:
+
+- Full Rewrite:
+
+By default, the procedure operates in full rewrite mode where all metadata
files are rewritten.
Review Comment:
"all metadata files associated with any reachable metadata.json?" I don't
think "all metadata files" is well defined here. I believe it's every
metadata.json and all files associated with those metadata.jsons that is in the
history log, or am I incorrect?
I can't remember if it's this or just snapshots?
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