ExprFdItem.java

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package org.apache.doris.nereids.properties;

import org.apache.doris.nereids.trees.expressions.SlotReference;
import org.apache.doris.nereids.trees.plans.logical.LogicalPlan;

import com.google.common.collect.ImmutableSet;

/**
 * Expression level function dependence items.
 */
public class ExprFdItem extends FdItem {
    private ImmutableSet<SlotReference> childExprs;

    public ExprFdItem(ImmutableSet<SlotReference> parentExprs, boolean isUnique,
            ImmutableSet<SlotReference> childExprs) {
        super(parentExprs, isUnique, false);
        this.childExprs = ImmutableSet.copyOf(childExprs);
    }

    @Override
    public boolean checkExprInChild(SlotReference slot, LogicalPlan childPlan) {
        return childExprs.contains(slot);
    }
}