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Implements upsert/delete roughly as described in #264 and the collaborative design doc.
Adds integration tests for upsert/delete and fixes a small bug in the connector's
SchemaRetriever
API. For instructions on running the tests, see the changes to theREADME
.The tests cover:
MemorySchemaRetriever
), and correctness-of-content verification for all three.There's also an ignored-by-default throughput test that generates 1,000,000 records into Kafka, runs the connector in upsert-delete mode, and outputs the time taken between starting the connector and commit of offsets for every record produced.