Haisheng Yuan created CALCITE-3757:
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Summary: When merging sets, relnodes may be reregistered multiple
times
Key: CALCITE-3757
URL: https://issues.apache.org/jira/browse/CALCITE-3757
Project: Calcite
Issue Type: Bug
Components: core
Reporter: Haisheng Yuan
In RelSet#mergeWith(),
{code:java}
// merge subsets
for (RelSubset otherSubset : otherSet.subsets) {
......
for (RelNode otherRel : otherSubset.getRels()) {
planner.reregister(this, otherRel);
}
}
{code}
otherSubset.getRels() returns all the rels that satisfy the traitset. A
relnode's traitset may satisfy many traitsets, hence it will be reregistered
multiple times.
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