xiedeyantu commented on code in PR #4490:
URL: https://github.com/apache/calcite/pull/4490#discussion_r2252869224
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core/src/main/java/org/apache/calcite/rel/rules/CoreRules.java:
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@@ -620,6 +620,10 @@ private CoreRules() {}
public static final JoinCommuteRule JOIN_COMMUTE_OUTER =
JoinCommuteRule.Config.SWAP_OUTER.toRule();
+ /** As {@link #JOIN_COMMUTE} but only swaps RIGHT joins to LEFT joins. */
+ public static final JoinCommuteRule JOIN_COMMUTE_RIGHT_TO_LEFT =
Review Comment:
Should add `@RuleConfig(value = "RIGHT_TO_LEFT_ONLY")`
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