dramaticlly commented on code in PR #12115: URL: https://github.com/apache/iceberg/pull/12115#discussion_r1957071171
########## docs/docs/spark-procedures.md: ########## @@ -972,4 +972,98 @@ 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` procedure prepares an Iceberg table for moving or copying to another location. + +### `rewrite-table-path` + +Stages a copy of the Iceberg table's metadata files where every absolute path source prefix is replaced by the specified target prefix. +This can be the starting point to fully or incrementally move or copy an Iceberg table to a new location. + +!!! info + This procedure only stages rewritten metadata files and prepares a list of files to copy. The actual file copy 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, rewriting all reachable metadata files. This includes metadata.json, manifest lists, manifests, and position delete files. + +- Incremental Rewrite: + +If `start_version` is provided, the procedure will only rewrite metadata files created between `start_version` and `end_version`. `end_version` defaults to the latest metadata.json of the table. + +#### Output + +| Output Name | Type | Description | +|----------------------|--------|-------------------------------------------------------------------| +| `latest_version` | string | Name of the latest metadata file rewritten by this procedure | +| `file_list_location` | string | Path to a csv file containing a mapping of source to target paths | + +##### File List Copy Plan +The file list contains the copy plan for all files added to the table between `startVersion` and `endVersion`. Review Comment: I think it's called file list due to the fact that rewrite table path result define such as `fileListLocation`. But it's not render as a list -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org