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maryannxue 21fcac1645 [SPARK-24288][SQL] Add a JDBC Option to enable preventing predicate pushdown 
## What changes were proposed in this pull request?

Add a JDBC Option "pushDownPredicate" (default `true`) to allow/disallow predicate push-down in JDBC data source.

## How was this patch tested?

Add a test in `JDBCSuite`

Author: maryannxue <maryannxue@apache.org>

Closes #21875 from maryannxue/spark-24288.
2018-07-26 23:47:32 -07:00
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main [SPARK-24288][SQL] Add a JDBC Option to enable preventing predicate pushdown 2018-07-26 23:47:32 -07:00
test [SPARK-24288][SQL] Add a JDBC Option to enable preventing predicate pushdown 2018-07-26 23:47:32 -07:00