rdblue commented on issue #40: Add external schema mappings for files written with name-based schemas URL: https://github.com/apache/incubator-iceberg/issues/40#issuecomment-461211206 This is for mapping external schemas into Iceberg. Basically adding Iceberg's IDs during conversion. This could be done for any format. There's code for "fallback" in Parquet that does this using the column ordinal, which is how we read old Parquet data. This particular issue is to add a mapping for Avro, which uses names to resolve columns. This is useful for data coming from an external writer that can write Avro schemas, but doesn't have an Iceberg schema.
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