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Posted to issues@spark.apache.org by "Dongjoon Hyun (JIRA)" <ji...@apache.org> on 2016/06/23 23:17:16 UTC
[jira] [Updated] (SPARK-16174) Improve OptimizeIn optimizer to
remove deterministic repetitions
[ https://issues.apache.org/jira/browse/SPARK-16174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun updated SPARK-16174:
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Description: This issue improves `OptimizeIn` optimizer to remove the deterministic repetitions from SQL `IN` predicates. This optimizer prevents user mistakes and also can optimize some queries like [TPCDS-36|https://github.com/apache/spark/blob/master/sql/core/src/test/resources/tpcds/q36.sql#L19]. (was: This issue adds an optimizer to remove the duplicated literals from SQL `IN` predicates. This optimizer prevents user mistakes and also can optimize some queries like [TPCDS-36|https://github.com/apache/spark/blob/master/sql/core/src/test/resources/tpcds/q36.sql#L19].)
Summary: Improve OptimizeIn optimizer to remove deterministic repetitions (was: Add RemoveLiteralRepetitionFromIn optimizer)
> Improve OptimizeIn optimizer to remove deterministic repetitions
> ----------------------------------------------------------------
>
> Key: SPARK-16174
> URL: https://issues.apache.org/jira/browse/SPARK-16174
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Dongjoon Hyun
> Priority: Minor
>
> This issue improves `OptimizeIn` optimizer to remove the deterministic repetitions from SQL `IN` predicates. This optimizer prevents user mistakes and also can optimize some queries like [TPCDS-36|https://github.com/apache/spark/blob/master/sql/core/src/test/resources/tpcds/q36.sql#L19].
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