[GitHub] [iceberg] huleilei commented on pull request #4399: There is no 'key_metadata' field in manifest_file, so delete it

[GitBox <gi...@apache.org>]

huleilei commented on pull request #4399:
URL: https://github.com/apache/iceberg/pull/4399#issuecomment-1084214073


   @kbendick Is it necessary to change `MANIFEST_LIST_SCHEMA` to ensure that the length of `MANIFEST_LIST_SCHEMA` 
    and the "`get ()`" method of metadata is consistent:
   
   ```
     static final Schema MANIFEST_LIST_SCHEMA = new Schema(
         ManifestFile.PATH,
         ManifestFile.LENGTH,
         ManifestFile.SPEC_ID,
         ManifestFile.MANIFEST_CONTENT.asRequired(),
         ManifestFile.SEQUENCE_NUMBER.asRequired(),
         ManifestFile.MIN_SEQUENCE_NUMBER.asRequired(),
         ManifestFile.SNAPSHOT_ID.asRequired(),
         ManifestFile.ADDED_FILES_COUNT.asRequired(),
         ManifestFile.EXISTING_FILES_COUNT.asRequired(),
         ManifestFile.DELETED_FILES_COUNT.asRequired(),
         ManifestFile.ADDED_ROWS_COUNT.asRequired(),
         ManifestFile.EXISTING_ROWS_COUNT.asRequired(),
         ManifestFile.DELETED_ROWS_COUNT.asRequired(),
         ManifestFile.PARTITION_SUMMARIES,
         ManifestFile.WRITER_ID.asRequired(),
         ManifestFile.KEY_METADATA
     );
   ```
    The length of `MANIFEST_LIST_SCHEMA` is 14. 
   


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