[ https://issues.apache.org/jira/browse/FLINK-15635 ]
dalongliu deleted comment on FLINK-15635:
-----------------------------------
was (Author: lsy):
[~slinkydeveloper] Do you have start this work? maybe `CREATE FUNCTION ...
USING JAR` syntax in FLIP-214 relay on this work. CC [~twalthr]
> Allow passing a ClassLoader to EnvironmentSettings
> --------------------------------------------------
>
> Key: FLINK-15635
> URL: https://issues.apache.org/jira/browse/FLINK-15635
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Timo Walther
> Assignee: Francesco Guardiani
> Priority: Major
> Labels: pull-request-available
>
> We had a couple of class loading issues in the past because people forgot to
> use the right classloader in {{flink-table}}. The SQL Client executor code
> hacks a classloader into the planner process by using {{wrapClassLoader}}
> that sets the threads context classloader.
> Instead we should allow passing a class loader to environment settings. This
> class loader can be passed to the planner and can be stored in table
> environment, table config, etc. to have a consistent class loading behavior.
> Having this in place should replace the need for
> {{Thread.currentThread().getContextClassLoader()}} in the entire
> {{flink-table}} module.
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