feat: support of otf metadata for iceberg destinations #574
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What?
Add support of
otfMetadatawhen using Iceberg as destionations for Firehose.Why?
Firehose can route incoming records in a stream to different Iceberg tables based on the content of the record.
Also it is possible to provide a
operationattribute which will indicate to Iceberg if the record should be treated as aninsert,updateordeleteoperation.See https://docs.aws.amazon.com/firehose/latest/dev/apache-iceberg-format-input-record-different.html#apache-iceberg-route-lambda
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