LogicalJoinToNestedLoopJoin.java

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package org.apache.doris.nereids.rules.implementation;

import org.apache.doris.nereids.rules.Rule;
import org.apache.doris.nereids.rules.RuleType;
import org.apache.doris.nereids.trees.plans.physical.PhysicalNestedLoopJoin;
import org.apache.doris.nereids.util.JoinUtils;

/**
 * Implementation rule that convert logical join to physical nested loop join.
 */
public class LogicalJoinToNestedLoopJoin extends OneImplementationRuleFactory {
    @Override
    public Rule build() {
        return logicalJoin()
                .when(JoinUtils::shouldNestedLoopJoin)
                .then(join -> new PhysicalNestedLoopJoin<>(
                        join.getJoinType(),
                        join.getHashJoinConjuncts(),
                        join.getOtherJoinConjuncts(),
                        join.getMarkJoinConjuncts(),
                        join.getMarkJoinSlotReference(),
                        join.getLogicalProperties(),
                        join.left(),
                        join.right())
                ).toRule(RuleType.LOGICAL_JOIN_TO_NESTED_LOOP_JOIN_RULE);
    }
}