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From "Apache Spark (JIRA)" <>
Subject [jira] [Assigned] (SPARK-9843) Catalyst: Allow adding custom optimizers
Date Wed, 12 Aug 2015 22:37:46 GMT


Apache Spark reassigned SPARK-9843:

    Assignee:     (was: Apache Spark)

> Catalyst: Allow adding custom optimizers
> ----------------------------------------
>                 Key: SPARK-9843
>                 URL:
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 1.4.1
>            Reporter: Robert Kruszewski
> Currently there's only option to plug into query planning. This provides limited capability
for optimizing queries.
> Allowing specifying custom optimizers would allow applications that make use of spark
sql tune their workflows. One example would be inserting repartitions into query plan which
isn't generally applicable but if you know range of possible queries you can do that on the

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