Shaofeng SHI created KYLIN-2424:
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Summary: Optimize the integration test's performance
Key: KYLIN-2424
URL: https://issues.apache.org/jira/browse/KYLIN-2424
Project: Kylin
Issue Type: Improvement
Components: Tools, Build and Test
Reporter: Shaofeng SHI
Assignee: Shaofeng SHI
Fix For: v2.0.0
Kylin's integration test is slow, especially the ITCombinationTest. Most of
time are spent on H2 to execute the test queries. In a latest integration test,
this test case take 90 minutes to finish.
By checking H2's document, I think the main problem is the absence of index on
the tables, while index is very important for a relational database's query
performance. So when Kylin create the tables in H2, shoud create index on the
columns that will be used in the queries, like the pk/fk, the filtering columns
etc.
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