Riza Suminto created IMPALA-12548:
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Summary: Clarify the meaning of AGG_MEM_CORRELATION_FACTOR
Key: IMPALA-12548
URL: https://issues.apache.org/jira/browse/IMPALA-12548
Project: IMPALA
Issue Type: Documentation
Reporter: Riza Suminto
AGG_MEM_CORRELATION_FACTOR has valid value between 0.0 to 1.0. This query
option name can be misinterpreted as high value means highly correlated
columns, but it is actually the opposite in the code implementation. 1.0 is
interpreted as no correlation at all in the code, while <1.0 means somewhat
correlated. Documentation should be clarified about this.
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