Laurent Goujon created CALCITE-2437:
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Summary: FilterMultiJoinMergeRule doesn't combine
postFilterCondition
Key: CALCITE-2437
URL: https://issues.apache.org/jira/browse/CALCITE-2437
Project: Calcite
Issue Type: Bug
Components: core
Reporter: Laurent Goujon
Assignee: Julian Hyde
{{FilterMultiJoinMergeRule}} merges a {{Filter}} on top of a {{MultiJoin}} into
the multi join itself as part of its post-join filter condition. But the rule
doesn't seem to combine the top filter with the existing condition.
I actually believe it's a bug in the code, although I never triggered it myself.
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