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https://issues.apache.org/jira/browse/CASSANDRA-325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12736928#action_12736928
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Jonathan Ellis commented on CASSANDRA-325:
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since (a) we currently always deserialize the entire index (right?) and at that
point there's not much point in checking the BF, and (b) range queries are the
expensive ones and those can't benefit from the BF anyway, I would lean towards
just getting rid of the column-level BF.
> Column bloomfilter not exploited
> --------------------------------
>
> Key: CASSANDRA-325
> URL: https://issues.apache.org/jira/browse/CASSANDRA-325
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jun Rao
>
> There is a bloomfilter created for all columns per row in SSTables. The
> bloomfilter is deserialized during read, but is not checked.
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