xzj7019 commented on code in PR #27378:
URL: https://github.com/apache/doris/pull/27378#discussion_r1408678982
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fe/fe-core/src/main/java/org/apache/doris/nereids/hint/LeadingHint.java:
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@@ -191,6 +196,29 @@ public List<Pair<Long, Expression>> getFilters() {
return filters;
}
+ public void putFilterJoinType(Expression filter, JoinType joinType) {
+ filterJoinType.put(filter, joinType);
+ }
+
+ /**
+ * find out whether filters can match original joinType
+ * @param filters filters needs to put on this join
+ * @param joinType join type computed by join constraint
+ * @return can filters matched
+ */
+ public boolean isFilterJoinTypeMatched(List<Expression> filters, JoinType
joinType) {
+ for (Expression filter : filters) {
+ JoinType originalJoinType = filterJoinType.get(filter);
+ if (originalJoinType.equals(joinType)
+ || originalJoinType.isOuterJoin() && joinType.isOuterJoin()
Review Comment:
Pls also check if it is covered by random test and current ut.
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