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Elasticsearch subproject :x-pack:plugin:esql:compute:ann

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/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0; you may not use this file except in compliance with the Elastic License
 * 2.0.
 */

package org.elasticsearch.compute.ann;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Annotates a class that implements an aggregation function with grouping.
 * See {@link Aggregator} for more information.
 */
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.SOURCE)
public @interface GroupingAggregator {

    IntermediateState[] value() default {};

    /**
     * If {@code true} then the @timestamp LongVector will be appended to the input blocks of the aggregation function.
     */
    boolean includeTimestamps() default false;
}