[jira] Updated: (CASSANDRA-1614) Only create IColumnIterators for matching sstables

["Stu Hood (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-1614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stu Hood updated CASSANDRA-1614:
--------------------------------

    Attachment: 0001-Only-create-IColumnIterators-for-matching-sstables-a.patch

Adds factory functions to SSTable*Iterators that perform the filter and index checks and return null for a miss. Also skips decoding the row key when assertions are disabled.

> Only create IColumnIterators for matching sstables
> --------------------------------------------------
>
>                 Key: CASSANDRA-1614
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1614
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 0.7.0
>
>         Attachments: 0001-Only-create-IColumnIterators-for-matching-sstables-a.patch
>
>
> We currently perform bloom filter and index checks in the constructor for SSTable*Iterators, which means that the object gets created even if we miss. Using a factory function for this step would save object creation time.

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