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https://issues.apache.org/jira/browse/HIVE-22526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Miklos Gergely updated HIVE-22526:
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Attachment: (was: HIVE-22526.09.patch)
> Extract Compiler from Driver
> ----------------------------
>
> Key: HIVE-22526
> URL: https://issues.apache.org/jira/browse/HIVE-22526
> Project: Hive
> Issue Type: Sub-task
> Components: Hive
> Reporter: Miklos Gergely
> Assignee: Miklos Gergely
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-22526.01.patch, HIVE-22526.02.patch,
> HIVE-22526.03.patch, HIVE-22526.04.patch, HIVE-22526.05.patch,
> HIVE-22526.06.patch, HIVE-22526.07.patch, HIVE-22526.08.patch,
> HIVE-22526.09.patch
>
>
> The Driver class contains ~600 lines of code responsible for compiling the
> command. That means that from the command String a Plan needs to be created,
> and also a transaction needs to be started (in most of the cases). This is a
> thing done by the compile function, which has a lot of sub functions to help
> this task, while itself is also really big. All these codes should be put
> into a separate class, where it can do it's job without getting mixed with
> the other codes in the Driver.
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