michaelmior commented on a change in pull request #1092: [CALCITE-2899]
Deprecate RelTraitPropagationVisitor and remove its usages
URL: https://github.com/apache/calcite/pull/1092#discussion_r263193743
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File path:
core/src/main/java/org/apache/calcite/plan/RelTraitPropagationVisitor.java
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@@ -25,7 +25,19 @@
* children, making sure that each has a full complement of traits. When a
* RelNode is found to be missing one or more traits, they are copied from a
* RelTraitSet given during construction.
+ *
+ * @deprecated As of 1.19, if you need to perform certain assertions regarding
a RelNode tree and
+ * the contained traits you are encouraged to implement your own RelVisitor or
+ * {@link org.apache.calcite.rel.RelShuttle} directly. The reasons for
deprecating this class are
+ * the following:
+ * <ul>
+ * <li>The contract (Javadoc & naming) and the behavior of the class are
inconsistent.</li>
Review comment:
`&` should be `&` (or just "and")
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