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https://issues.apache.org/jira/browse/SPARK-36574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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jiaan.geng updated SPARK-36574:
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Description:
Spark SQL includes a data source that can read data from other databases using
JDBC.
Spark also supports the case-insensitive option pushDownPredicate.
According to http://spark.apache.org/docs/latest/sql-data-sources-jdbc.html, If
set pushDownPredicate to false, no filter will be pushed down to the JDBC data
source and thus all filters will be handled by Spark.
But I find it still be pushed down to JDBC data source.
was:
Spark SQL includes a data source that can read data from other databases using
JDBC.
Spark also supports the case-insensitive option pushDownPredicate.
According to http://spark.apache.org/docs/latest/sql-data-sources-jdbc.html, If
set pushDownPredicate to false, no filter will be pushed down to the JDBC data
source and thus all filters will be handled by Spark.
But I find it still be pushed down to data scoure.
> pushDownPredicate failed to prevent push filters down to the data source.
> -------------------------------------------------------------------------
>
> Key: SPARK-36574
> URL: https://issues.apache.org/jira/browse/SPARK-36574
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: jiaan.geng
> Priority: Major
>
> Spark SQL includes a data source that can read data from other databases
> using JDBC.
> Spark also supports the case-insensitive option pushDownPredicate.
> According to http://spark.apache.org/docs/latest/sql-data-sources-jdbc.html,
> If set pushDownPredicate to false, no filter will be pushed down to the JDBC
> data source and thus all filters will be handled by Spark.
> But I find it still be pushed down to JDBC data source.
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