James Starr created CALCITE-4340:
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Summary: Correlated Queries in ON clause do not work when
referring to left side
Key: CALCITE-4340
URL: https://issues.apache.org/jira/browse/CALCITE-4340
Project: Calcite
Issue Type: Improvement
Components: core
Reporter: James Starr
Changes from CALCITE-4210 does not robustly support correlated queries in ON
clauses.
For the short term I am going revert the logic for supporting ON clause and
throw an exception when correlated queries occur in ON clause.
Then I will follow up with a fix that will support single subqueries in on
clauses. This will require fixing the offset in Blackboard.register, correctly
detect if correlated variable is on the being used and adding a rule
RelDecorrelator joined decorrelations.
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