hongbin ma created KYLIN-2635:
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Summary: optimize determined case when filters
Key: KYLIN-2635
URL: https://issues.apache.org/jira/browse/KYLIN-2635
Project: Kylin
Issue Type: Bug
Reporter: hongbin ma
Assignee: hongbin ma
currently calcite will not handle with determined filter like:
1. where 1 = 1 => where true
2. where ( 1= 1 or x = 2) => where true
3. where case when 'a' = 'a' then x > 1 else x < 1 => where x > 1
the first two cases have been handled in KYLIN-2539, however the third case is
not handled yet. This JIRA is to track the third case.
In theory, this JIRA together with KYLIN-2539, KYLIN-2597 should be solved in
calcite rather than KYLIN. However it's urgent demand so we'll fix in KYLIN
first.
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