You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2016/11/03 09:02:00 UTC
[jira] [Updated] (SPARK-17254) Filter operator should have “stop if false” semantics for sorted data
[ https://issues.apache.org/jira/browse/SPARK-17254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Reynold Xin updated SPARK-17254:
--------------------------------
Issue Type: Sub-task (was: Improvement)
Parent: SPARK-18245
> Filter operator should have “stop if false” semantics for sorted data
> ---------------------------------------------------------------------
>
> Key: SPARK-17254
> URL: https://issues.apache.org/jira/browse/SPARK-17254
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Tejas Patil
> Attachments: stop-after-physical-plan.pdf
>
>
> From https://issues.apache.org/jira/secure/attachment/12778890/BucketedTables.pdf:
> Filter on sorted data
> If the data is sorted by a key, filters on the key could stop as soon as the data is out of range. For example, WHERE ticker_id < “F” should stop as soon as the first row starting with “F” is seen. This can be done adding a Filter operator that has “stop if false” semantics. This is generally useful.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org