rubenada commented on code in PR #3418:
URL: https://github.com/apache/calcite/pull/3418#discussion_r1329885385
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core/src/main/java/org/apache/calcite/rel/rules/CoreRules.java:
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@@ -715,6 +715,11 @@ private CoreRules() {}
public static final SortRemoveConstantKeysRule SORT_REMOVE_CONSTANT_KEYS =
SortRemoveConstantKeysRule.Config.DEFAULT.toRule();
+ /** Rule that removes redundant {@link Sort} if its input max row number
+ * is less than or equal one. */
Review Comment:
nitipck: "... or equal **to** one"
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