[jira] [Created] (CASSANDRA-11175) Extend support for post-reconcilliation processing to all read commands

["Sam Tunnicliffe (JIRA)" <ji...@apache.org>]

Sam Tunnicliffe created CASSANDRA-11175:
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             Summary: Extend support for post-reconcilliation processing to all read commands
                 Key: CASSANDRA-11175
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11175
             Project: Cassandra
          Issue Type: Improvement
          Components: CQL
            Reporter: Sam Tunnicliffe
            Assignee: Sam Tunnicliffe
            Priority: Minor
             Fix For: 3.x


CASSANDRA-8717 introduced limited support for processing or transformation of query results on the coordinator, which occurs after the results from individual replicas have been reconciled. At the moment this is limited to queries which utilise secondary indexes and the post-processing function itself is provided by the index implementation. It would be useful if this were expanded so that any read command may include a post-reconcilliation processing step. A straightforward way to control this would be via a custom {{QueryHandler}}. 




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