Etienne Chauchot created FLINK-38042:
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             Summary: Warn the user on full table scans
                 Key: FLINK-38042
                 URL: https://issues.apache.org/jira/browse/FLINK-38042
             Project: Flink
          Issue Type: Improvement
          Components: Connectors / Cassandra
            Reporter: Etienne Chauchot
            Assignee: Etienne Chauchot


The Cassandra source connector allows the user to specify a query. This query 
can contain filters on the provided table. So these filters are pushed down but 
in some cases, they could lead to inefficient table scans:
- Filtering on non-indexed, non-key columns
- not restricting on partition key leads the cluster to read all the partitions

We should detect such cases and warn the user.



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