[jira] [Created] (FLINK-20657) Migrate jdbc connection code of JdbcInputFormat, JdbcLookupFunction, JdbcRowDataLookupFunction to SimpleJdbcConnectionProvider

[Shang Yuanchun (Jira)]

Kezhu Wang created FLINK-20657:
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             Summary: Migrate jdbc connection code of JdbcInputFormat, JdbcLookupFunction, JdbcRowDataLookupFunction to SimpleJdbcConnectionProvider
                 Key: FLINK-20657
                 URL: https://issues.apache.org/jira/browse/FLINK-20657
             Project: Flink
          Issue Type: Improvement
          Components: Connectors / JDBC
    Affects Versions: 1.13.0
            Reporter: Kezhu Wang


Currently, there are multiple places to establish jdbc connection, several of them were written before introducing of {{JdbcConnectionProvider}} in FLINK-15782. We need to migrate these classes for reasons:
* Code reusability.
* Circumvent pitfalls of {{DriverManager}} such as FLINK-19435 and possible [others|https://ci.apache.org/projects/tomcat/tomcat85/docs/jndi-datasource-examples-howto.html#DriverManager,_the_service_provider_mechanism_and_memory_leaks] in one place.



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