Riza Suminto created IMPALA-12726:
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Summary: Simulate large scale query planning in
TpcdsCpuCostPlannerTest
Key: IMPALA-12726
URL: https://issues.apache.org/jira/browse/IMPALA-12726
Project: IMPALA
Issue Type: Improvement
Components: Frontend
Reporter: Riza Suminto
Assignee: Riza Suminto
Querying against large scale database is a good way to test Impala. However, it
is impractical to do in single node development machine.
Frontend testing does not actually run the test query in backend executor and
can benefit from simulated large scale test cases. This can be done by either
instrumenting the CatalogD metadata loading code or the COMPUTE STATS query to
multiply numRows, numNull, numTrues, and numFalses to a scale constant. We can
start by hacking TpcdsCpuCostPlannerTest to simulate 1TB TPC-DS query planning.
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