Silun Dong created CALCITE-7414:
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Summary: Incorrect mapping of CorDef after decorrelating a Join in
TopDownGeneralDecorrelator
Key: CALCITE-7414
URL: https://issues.apache.org/jira/browse/CALCITE-7414
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.41.0
Reporter: Silun Dong
Assignee: Silun Dong
After decorrelating a node, we need to determine which output column replaces
outer variable (i.e. populate the map from {{CorDef}} to output index in new
node). When decorrelating a Join, we have to take the join type into account to
decide which side of the join to use for the replacement (refer to section 3.3
in {_}Improving Unnesting of Complex Queries{_}). The current implementation
omits this logic. The corresponding test case can be found in CALCITE-7379.
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