RecursiveCteNode.java

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// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.doris.planner;

import org.apache.doris.analysis.Expr;
import org.apache.doris.analysis.TupleId;
import org.apache.doris.thrift.TExplainLevel;
import org.apache.doris.thrift.TPlanNode;
import org.apache.doris.thrift.TPlanNodeType;
import org.apache.doris.thrift.TRecCTENode;

import com.google.common.base.MoreObjects;
import com.google.common.collect.Lists;

import java.util.List;

public class RecursiveCteNode extends PlanNode {
    private String cteName;
    private boolean isUnionAll;
    private List<List<Expr>> materializedResultExprLists = Lists.newArrayList();
    private TRecCTENode tRecCTENode;

    public RecursiveCteNode(PlanNodeId id, TupleId tupleId, String cteName, boolean isUnionAll) {
        super(id, tupleId.asList(), "RECURSIVE_CTE");
        this.cteName = cteName;
        this.isUnionAll = isUnionAll;
    }

    public boolean isUnionAll() {
        return isUnionAll;
    }

    public void setMaterializedResultExprLists(List<List<Expr>> exprs) {
        this.materializedResultExprLists = exprs;
    }

    public List<List<Expr>> getMaterializedResultExprLists() {
        return materializedResultExprLists;
    }

    public void settRecCTENode(TRecCTENode tRecCTENode) {
        this.tRecCTENode = tRecCTENode;
    }

    @Override
    protected void toThrift(TPlanNode msg) {
        msg.node_type = TPlanNodeType.REC_CTE_NODE;
        msg.rec_cte_node = tRecCTENode;
    }

    @Override
    public String getNodeExplainString(String prefix, TExplainLevel detailLevel) {
        StringBuilder output = new StringBuilder();
        output.append(prefix).append("Recursive Cte: ").append(cteName).append("\n");
        output.append(prefix).append("isUnionAll: ").append(isUnionAll).append("\n");
        if (!conjuncts.isEmpty()) {
            Expr expr = convertConjunctsToAndCompoundPredicate(conjuncts);
            output.append(prefix).append("PREDICATES: ").append(expr.toSql()).append("\n");
        }
        return output.toString();
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
                .add("name", cteName)
                .add("id", getId().asInt())
                .add("tid", tupleIds.get(0).asInt())
                .add("isUnionAll", isUnionAll).toString();
    }
}