Support Sharing Delta Tables with Column Mappings

[goodwillpunning]

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Currently, Delta tables that leverage column mapping cannot be shared by the sharing server. The Delta standalone reader used by the reference sharing server is only compatible with Delta Tables prior to version 2. As a result, the sharing server will respond with an HTTP 400 status with an accompanying UNSUPPORTED_OPERATION error code.

HTTPError: 400 Client Error: Bad Request for url: http://<sharing-server-hostname>/delta-sharing/shares/us_stocks_share/schemas/tickers/tables/msft/query
 Response from server: 
 { 'errorCode': 'UNSUPPORTED_OPERATION',
  'message': '\n'
             'Delta protocol version (2,5) is too new for this version of '
             'Delta\n'
             'Standalone Reader/Writer (1,2). Please upgrade to a newer '
             'release.\n'}

[linzhou-db]

ack, this is in the road map.

[dominikpeter]

Any news on this one? I am eagerly waiting for this feature 😄. I saw that in release 1.0.0 were features released that would help with ColumnMapping and DeletionVector. Are there any timelines for these features?