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https://issues.apache.org/jira/browse/CASSANDRA-6389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13830351#comment-13830351
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Jonathan Ellis commented on CASSANDRA-6389:
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On second look, this isn't as critical as I thought since intervaltree should
keep the query-set to tables that satisfy the condition anyway.
If that's the case, maybe we can just change this to an assert to make sure.
> Check first and last key to potentially skip SSTable for reads
> --------------------------------------------------------------
>
> Key: CASSANDRA-6389
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6389
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Tyler Hobbs
> Assignee: Tyler Hobbs
> Priority: Minor
> Attachments: 6389.patch
>
>
> In {{SSTableReader.getPosition()}}, we use a -1 result from a binary search
> on the index summary to check if the requested key falls before the start of
> the sstable. Instead, we can directly compare the requested key with the
> {{first}} and {{last}} keys for the sstable, which will allow us to also skip
> keys that fall after the last key in the sstable.
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