GitHub user twalthr opened a pull request:

    [FLINK-4288] [table] Make it possible to unregister tables

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    This PR adds the possibility to unregister tables. Although Calcite 
supports mutable schemas, deleting a table instead of replacing it was not easy 
to implement. I will add some documentation if you are fine with this PR.

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    This closes #2511
commit 0ecb6138680498bdacb134eff1609b21cbb07cd9
Author: twalthr <>
Date:   2016-09-19T12:09:14Z

    [FLINK-4288] [table] Make it possible to unregister tables


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