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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2019/12/27 23:25:19 UTC
[GitHub] [incubator-iceberg] rdblue commented on issue #715: Convert error
while query imported spark table
rdblue commented on issue #715: Convert error while query imported spark table
URL: https://github.com/apache/incubator-iceberg/issues/715#issuecomment-569363060
@yujiantao, the current fallback strategy for assigning IDs assumes that your data has not had any columns removed. We've talked about adding support for `NameMapping` to Parquet so that it will fall back to name-based resolution. We've built this for Avro since Avro only supports name-based resolution (Parquet supports both name-based and position-based in some systems).
Would you like to work on adding an ID assignment fallback implementation that uses `NameMapping`?
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