[ https://issues.apache.org/jira/browse/SPARK-13981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen updated SPARK-13981: ------------------------------ Component/s: SQL > Improve Filter generated code to defer variable evaluation within operator > -------------------------------------------------------------------------- > > Key: SPARK-13981 > URL: https://issues.apache.org/jira/browse/SPARK-13981 > Project: Spark > Issue Type: Improvement > Components: SQL > Reporter: Nong Li > Priority: Minor > > We can improve the generated filter code by deferring evaluating variables > until just before they are needed. > For example. x > 1 and y > b > we can do > {code} > x = ... > if (x <= 1) continue > y = ... > {code} > instead of currently where we do > {code} > x = ... > y = ... > if (x <= 1) continue > ... > {code} > This is helpful if evaluating y has any cost. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org