[GitHub] [incubator-iceberg] rdblue opened a new pull request #342: Spark: Add support for write-audit-publish workflows.

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

rdblue opened a new pull request #342: Spark: Add support for write-audit-publish workflows.
URL: https://github.com/apache/incubator-iceberg/pull/342
 
 
   This adds support for write-audit-publish (WAP) workflows. When a WAP write is committed, the new table snapshot is added to table metadata but not made the current table snapshot. Instead, an external audit process runs to validate the new data and publishes the new snapshot (updates the table's current snapshot) only when audits pass.
   
   This adds a table property, `write.wap.enabled`, that must be true for a commit to be staged. Similarly, a table property, `spark.wap.id`, must be set in a job for that job's changes to be staged.

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