rdblue commented on a change in pull request #887: Define file and position
based deletion file in spec
URL: https://github.com/apache/incubator-iceberg/pull/887#discussion_r403165204
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File path: site/docs/spec.md
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@@ -333,6 +333,25 @@ Table metadata is stored as JSON. Each table metadata
change creates a new table
The atomic operation used to commit metadata depends on how tables are tracked
and is not standardized by this spec. See the sections below for examples.
+### Delete Format
+
+This section details how to encode row-level deletes in Iceberg metadata.
Row-level deletes are not supported in the current format version 1. This part
of the spec is not yet complete and will be completed as format version 2.
+
+#### Position-based Delete Files
+
+Position-based delete files identify rows in one or more data files that have
been deleted. It has the schema named "position_based_delete_file" with a
struct of the following fields:
+
+| Field id, name | Type | Description
|
+|-------------------------|---------------------------------|--------------------------------------------------------------------------------------------------------------------------|
+| **`600 file_path`** | `required string` | The full URI of
a data file with FS scheme. This must match the file_path of the target data
file in a manifest entry. |
Review comment:
Can you add back-ticks to `file_path` to format it correctly?
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