AggPhase.java

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

import org.apache.doris.analysis.AggregateInfo;

/**
 * Represents different phase of agg and map it to the
 * enum of agg phase definition of stale optimizer.
 */
public enum AggPhase {
    LOCAL("LOCAL", AggregateInfo.AggPhase.FIRST),
    GLOBAL("GLOBAL", AggregateInfo.AggPhase.FIRST_MERGE),
    DISTINCT_LOCAL("DISTINCT_LOCAL", AggregateInfo.AggPhase.SECOND),
    DISTINCT_GLOBAL("DISTINCT_GLOBAL", AggregateInfo.AggPhase.SECOND_MERGE);

    private final String name;

    private final AggregateInfo.AggPhase execAggPhase;

    AggPhase(String name, AggregateInfo.AggPhase execAggPhase) {
        this.name = name;
        this.execAggPhase = execAggPhase;
    }

    public boolean isLocal() {
        return this == LOCAL || this == DISTINCT_LOCAL;
    }

    public boolean isGlobal() {
        return this == GLOBAL || this == DISTINCT_GLOBAL;
    }

    public AggregateInfo.AggPhase toExec() {
        return this.execAggPhase;
    }

    @Override
    public String toString() {
        return name;
    }
}