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Posted to issues@calcite.apache.org by "Jinfeng Ni (JIRA)" <ji...@apache.org> on 2015/10/06 04:03:27 UTC
[jira] [Created] (CALCITE-911) Make CalciteSchema extendible for
different implementation.
Jinfeng Ni created CALCITE-911:
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Summary: Make CalciteSchema extendible for different implementation.
Key: CALCITE-911
URL: https://issues.apache.org/jira/browse/CALCITE-911
Project: Calcite
Issue Type: Bug
Reporter: Jinfeng Ni
Assignee: Jinfeng Ni
CalciteSchema by default uses cache to store table, sub-schema, function. This would work perfectly for schema-based system, yet would create problem for Drill, which dynamically explore the schema on the fly during query execution.
One solution is to refactor CalciteSchema and make it as an interface. The default implementation would still use the current implementation. Further, it would other system to extend the default behavior and make CalciteSchema works for Drill as well.
Background information: The issue around CalciteSchema is one of the reasons that Drill has to use a forked version of Calcite. Hopefully, if we could resolve this issue, we are one step further to remove the forked Calcite in the near future.
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