chunweilei commented on a change in pull request #1799: [CALCITE-3785]
HepPlanner.belongToDag() doesn't have to use mapDigest…
URL: https://github.com/apache/calcite/pull/1799#discussion_r378005146
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File path: core/src/main/java/org/apache/calcite/plan/hep/HepPlanner.java
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@@ -500,8 +500,7 @@ private void applyRules(
/** Returns whether the vertex is valid. */
private boolean belongsToDag(HepRelVertex vertex) {
- Pair<String, List<RelDataType>> key = key(vertex.getCurrentRel());
- return mapDigestToVertex.get(key) != null;
+ return graph.vertexSet().contains(vertex);
Review comment:
Agree with hsyuan.
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