UnassignedGroupCommitJob.java

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package org.apache.doris.nereids.trees.plans.distribute.worker.job;

import org.apache.doris.nereids.StatementContext;
import org.apache.doris.nereids.trees.plans.distribute.DistributeContext;
import org.apache.doris.nereids.trees.plans.distribute.worker.BackendWorker;
import org.apache.doris.planner.ExchangeNode;
import org.apache.doris.planner.PlanFragment;
import org.apache.doris.planner.ScanNode;
import org.apache.doris.thrift.TUniqueId;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ListMultimap;

import java.util.List;

/** UnassignedGroupCommitJob */
public class UnassignedGroupCommitJob extends AbstractUnassignedJob {
    public UnassignedGroupCommitJob(StatementContext statementContext,
            PlanFragment fragment, List<ScanNode> scanNodes,
            ListMultimap<ExchangeNode, UnassignedJob> exchangeToChildJob) {
        super(statementContext, fragment, scanNodes, exchangeToChildJob);
    }

    @Override
    public List<AssignedJob> computeAssignedJobs(
            DistributeContext distributeContext, ListMultimap<ExchangeNode, AssignedJob> inputJobs) {
        TUniqueId instanceId = statementContext.getConnectContext().nextInstanceId();
        BackendWorker selectBackend = new BackendWorker(statementContext.getGroupCommitMergeBackend());
        return ImmutableList.of(
                new StaticAssignedJob(
                        0, instanceId, this, selectBackend, DefaultScanSource.empty()
                )
        );
    }
}