UnsupportedCommand.java

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// to you under the Apache License, Version 2.0 (the
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//
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package org.apache.doris.nereids.trees.plans.commands;

import org.apache.doris.nereids.exceptions.MustFallbackException;
import org.apache.doris.nereids.trees.plans.PlanType;
import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor;
import org.apache.doris.qe.ConnectContext;
import org.apache.doris.qe.StmtExecutor;

/**
 * all Nereids' unsupported command
 */
public class UnsupportedCommand extends Command implements NoForward {

    public static UnsupportedCommand INSTANCE = new UnsupportedCommand();

    public UnsupportedCommand() {
        super(PlanType.UNSUPPORTED_COMMAND);
    }

    @Override
    public void run(ConnectContext ctx, StmtExecutor executor) throws Exception {
        throw new MustFallbackException("unsupported command");
    }

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