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https://issues.apache.org/jira/browse/CASSANDRA-8576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493117#comment-14493117
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Alex Liu commented on CASSANDRA-8576:
-------------------------------------
It's been this way for very beginning. Internally, url decoding is used. I
think it's not an easy way around here.
> Primary Key Pushdown For Hadoop
> -------------------------------
>
> Key: CASSANDRA-8576
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8576
> Project: Cassandra
> Issue Type: Improvement
> Components: Hadoop
> Reporter: Russell Alexander Spitzer
> Assignee: Alex Liu
> Fix For: 2.1.5
>
> Attachments: 8576-2.1-branch.txt, 8576-trunk.txt
>
>
> I've heard reports from several users that they would like to have predicate
> pushdown functionality for hadoop (Hive in particular) based services.
> Example usecase
> Table with wide partitions, one per customer
> Application team has HQL they would like to run on a single customer
> Currently time to complete scales with number of customers since Input Format
> can't pushdown primary key predicate
> Current implementation requires a full table scan (since it can't recognize
> that a single partition was specified)
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