Maryann Xue created CALCITE-1688:
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Summary: Query containing set operations (UNION/MINUS/INTERSECT)
would cause infinite loop in materialization substitution
Key: CALCITE-1688
URL: https://issues.apache.org/jira/browse/CALCITE-1688
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.11.0
Reporter: Maryann Xue
Assignee: Maryann Xue
Priority: Minor
Example: {{select a from t1 union all select a from t2}} where materialized
views are defined on t1 and/or t2.
This is because MutableMultiRel, being super class of MutableSetOp, did not set
"parent" and "ordinal" for its input rels.
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