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package org.jooq;

// ...

import java.util.Collection;

import org.jooq.impl.DSL;

import org.jetbrains.annotations.NotNull;


An aggregate function.

An aggregate function is a special field that is usually used in a
GROUP BY context. It is also the base for window function
construction.

Example:

// Assuming import static org.jooq.impl.DSL.*;
using(configuration)
   .select(ACTOR.LAST_NAME, count())
   .from(ACTOR)
   .groupBy(ACTOR.LAST_NAME)
   .orderBy(count().desc())
   .fetch();

 Instances can be created using various DSL methods and their overloads, such as DSL.count() or DSL.countDistinct(Field<?>). 
Author:
Lukas Eder/**
 * An aggregate function.
 * <p>
 * An aggregate function is a special field that is usually used in a
 * <code>GROUP BY</code> context. It is also the base for window function
 * construction.
 * <p>
 * <strong>Example:</strong>
 * <p>
 * <code><pre>
 * // Assuming import static org.jooq.impl.DSL.*;
 *
 * using(configuration)
 *    .select(ACTOR.LAST_NAME, count())
 *    .from(ACTOR)
 *    .groupBy(ACTOR.LAST_NAME)
 *    .orderBy(count().desc())
 *    .fetch();
 * </pre></code>
 * <p>
 * Instances can be created using various {@link DSL} methods and their
 * overloads, such as {@link DSL#count()} or {@link DSL#countDistinct(Field)}.
 *
 * @author Lukas Eder
 */
public interface AggregateFunction<T> extends AggregateFilterStep<T> {































































}