LogicalRecursiveCteRecursiveChild.java

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package org.apache.doris.nereids.trees.plans.logical;

import org.apache.doris.nereids.memo.GroupExpression;
import org.apache.doris.nereids.properties.DataTrait;
import org.apache.doris.nereids.properties.LogicalProperties;
import org.apache.doris.nereids.trees.expressions.Expression;
import org.apache.doris.nereids.trees.expressions.Slot;
import org.apache.doris.nereids.trees.plans.Plan;
import org.apache.doris.nereids.trees.plans.PlanType;
import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor;
import org.apache.doris.nereids.util.Utils;

import com.google.common.collect.ImmutableList;

import java.util.List;
import java.util.Optional;

/**
 * LogicalRecursiveCteRecursiveChild is sentinel plan for must_shuffle
 */
public class LogicalRecursiveCteRecursiveChild<CHILD_TYPE extends Plan> extends LogicalUnary<CHILD_TYPE> {
    private final String cteName;

    public LogicalRecursiveCteRecursiveChild(String cteName, CHILD_TYPE child) {
        this(cteName, Optional.empty(), Optional.empty(), child);
    }

    public LogicalRecursiveCteRecursiveChild(String cteName, Optional<GroupExpression> groupExpression,
            Optional<LogicalProperties> logicalProperties, CHILD_TYPE child) {
        this(cteName, groupExpression, logicalProperties, ImmutableList.of(child));
    }

    public LogicalRecursiveCteRecursiveChild(String cteName, Optional<GroupExpression> groupExpression,
            Optional<LogicalProperties> logicalProperties, List<Plan> child) {
        super(PlanType.LOGICAL_RECURSIVE_CTE_RECURSIVE_CHILD, groupExpression, logicalProperties, child);
        this.cteName = cteName;
    }

    public String getCteName() {
        return cteName;
    }

    @Override
    public Plan withChildren(List<Plan> children) {
        return new LogicalRecursiveCteRecursiveChild<>(cteName, Optional.empty(), Optional.empty(), children);
    }

    @Override
    public <R, C> R accept(PlanVisitor<R, C> visitor, C context) {
        return visitor.visitLogicalRecursiveCteRecursiveChild(this, context);
    }

    @Override
    public List<? extends Expression> getExpressions() {
        return ImmutableList.of();
    }

    @Override
    public Plan withGroupExpression(Optional<GroupExpression> groupExpression) {
        return new LogicalRecursiveCteRecursiveChild<>(cteName, groupExpression,
                Optional.of(getLogicalProperties()), children);
    }

    @Override
    public Plan withGroupExprLogicalPropChildren(Optional<GroupExpression> groupExpression,
            Optional<LogicalProperties> logicalProperties, List<Plan> children) {
        return new LogicalRecursiveCteRecursiveChild<>(cteName, groupExpression, logicalProperties, children);
    }

    @Override
    public String toString() {
        return Utils.toSqlStringSkipNull("LogicalRecursiveCteRecursiveChild",
                "cteName", cteName);
    }

    @Override
    public void computeUnique(DataTrait.Builder builder) {

    }

    @Override
    public void computeUniform(DataTrait.Builder builder) {

    }

    @Override
    public void computeEqualSet(DataTrait.Builder builder) {

    }

    @Override
    public void computeFd(DataTrait.Builder builder) {

    }

    @Override
    public List<Slot> computeOutput() {
        return child().getOutput();
    }
}