io.questdb.griffin.engine.groupby.vect.VectorAggregateFunction Maven / Gradle / Ivy

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 *  Copyright (c) 2019-2020 QuestDB
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package io.questdb.griffin.engine.groupby.vect;

import io.questdb.cairo.ArrayColumnTypes;
import io.questdb.cairo.sql.Function;
import io.questdb.std.Mutable;

public interface VectorAggregateFunction extends Function, Mutable {

    void aggregate(long address, long addressSize, int workerId);

    void aggregate(long pRosti, long keyAddress, long valueAddress, long valueAddressSize, int workerId);

    int getColumnIndex();

    // value offset in map
    int getValueOffset();

    void initRosti(long pRosti);

    void merge(long pRostiA, long pRostiB);

    void pushValueTypes(ArrayColumnTypes types);

    // sets null as result of aggregation of all nulls
    // this typically checks non-null count and replaces 0 with null if all values were null
    void wrapUp(long pRosti);
}