Dayue Gao created KYLIN-2115:
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Summary: some extended column query returns wrong answer
Key: KYLIN-2115
URL: https://issues.apache.org/jira/browse/KYLIN-2115
Project: Kylin
Issue Type: Bug
Components: General
Affects Versions: v1.5.4, v1.5.4.1
Reporter: Dayue Gao
Assignee: Dayue Gao
Priority: Critical
KYLIN-1979 introduces a bug, which can cause extended column query returns
wrong result if user defines more than one extended column metrics.
{noformat}
Example: let's define two extended columns
1. metricA(host=h1, extend=e1)
2. metricB(host=h2, extend=e2).
"select h1, e1 ... group by h1,e1" correct.
"select h1, e1, h2, e2 ... group by h1,e1, h2, e2" correct.
"select h2, e2 ... group by h2, e2" wrong. (column e2 is empty)
{noformat}
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