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Posted to commits@calcite.apache.org by GitBox <gi...@apache.org> on 2019/10/29 04:03:50 UTC
[GitHub] [calcite] yanlin-Lynn commented on a change in pull request #1533:
[CALCITE-3446] Make RelMetadataQuery extensible
yanlin-Lynn commented on a change in pull request #1533: [CALCITE-3446] Make RelMetadataQuery extensible
URL: https://github.com/apache/calcite/pull/1533#discussion_r339886302
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File path: core/src/main/java/org/apache/calcite/plan/RelOptCluster.java
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@@ -49,6 +52,7 @@
private MetadataFactory metadataFactory;
private final RelTraitSet emptyTraitSet;
private RelMetadataQuery mq;
+ private Supplier<RelMetadataQuery> mqSupplier;
Review comment:
how about `private Supplier<? extends RelMetadataQuery> mqSupplier;` ?
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