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From "Sergio Bossa (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-9314) Overload SecondaryIndex#indexes to accept the column definition name
Date Wed, 06 May 2015 12:03:00 GMT
Sergio Bossa created CASSANDRA-9314:
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             Summary: Overload SecondaryIndex#indexes to accept the column definition name
                 Key: CASSANDRA-9314
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9314
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Sergio Bossa
            Assignee: Sergio Bossa


In order to avoid rebuilding indexes when no columns are actually indexed (originally implemented
in CASSANDRA-9196), CASSANDRA-9281 hinted at overriding {{SecondaryIndex#getColumnDefs}} to
"filter out" indexes that shouldn't be rebuilt; unfortunately, I believe this would be quite
wrong for safety reasons, as it could have side effects on other methods relying on {{getColumnDefs}}
returning a stable set, and API consistency ones, as it would be confusing to have {{getColumnDefs}}
behave differently based on runtime conditions, possibly ignoring {{addColumnDef}} calls.

I believe {{SecondaryIndex#indexes}} is still the best candidate to act as a filter predicate,
and I propose to overload it to accept a column definition name for all those cases (i.e.
index rebuilding) missing a full cell name.



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