gaborgsomogyi commented on a change in pull request #33370:
URL: https://github.com/apache/spark/pull/33370#discussion_r671028756
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File path: sql/core/src/main/scala/org/apache/spark/sql/jdbc/README.md
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@@ -46,6 +46,12 @@ so they can be turned off and can be replaced with custom
implementation. All CP
which must be unique. One can set the following configuration entry in
`SparkConf` to turn off CPs:
`spark.sql.sources.disabledJdbcConnProviderList=name1,name2`.
+## How to enforce a specific JDBC connection provider?
+
+When more than one JDBC connection provider can handle a specific driver and
options, it is possible to
+disambiguate and enforce a particular CP for the JDBC data source. One can set
the DataFrameReader
Review comment:
+1 on this question.
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