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Posted to issues@spark.apache.org by "Takeshi Yamamuro (JIRA)" <ji...@apache.org> on 2018/06/29 06:52:00 UTC
[jira] [Created] (SPARK-24690) Add a new config to control plan
stats computation in LogicalRelation
Takeshi Yamamuro created SPARK-24690:
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Summary: Add a new config to control plan stats computation in LogicalRelation
Key: SPARK-24690
URL: https://issues.apache.org/jira/browse/SPARK-24690
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.3.1
Reporter: Takeshi Yamamuro
We cannot currently enable StarSchemaDetection.reorderStarJoins because we need to turn off CBO to enable it but StarSchemaDetection internally references LogicalPlan.stats.rowCount.
This rowCount is used in LogicalRelation if CBO disabled.
This ticket is to propose a new separate config so that LogicalRelation can use rowCount to compute data statistics.
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