Miklos Gergely created HIVE-22526:
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Summary: 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
Fix For: 4.0.0
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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