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27 lines
1.3 KiB
Markdown
27 lines
1.3 KiB
Markdown
---
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machine_translated: true
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machine_translated_rev: 72537a2d527c63c07aa5d2361a8829f3895cf2bd
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toc_priority: 60
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toc_title: "Implementaci\xF3n del operador IN"
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---
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# Funciones para implementar el operador IN {#functions-for-implementing-the-in-operator}
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## Información de uso {#in-functions}
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Vea la sección [IN operadores](../operators/in.md#select-in-operators).
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## tuple(x, y, …), operator (x, y, …) {#tuplex-y-operator-x-y}
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Una función que permite agrupar varias columnas.
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For columns with the types T1, T2, …, it returns a Tuple(T1, T2, …) type tuple containing these columns. There is no cost to execute the function.
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Las tuplas se usan normalmente como valores intermedios para un argumento de operadores IN, o para crear una lista de parámetros formales de funciones lambda. Las tuplas no se pueden escribir en una tabla.
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## Puede utilizar el siguiente ejemplo: {#tupleelementtuple-n-operator-x-n}
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Una función que permite obtener una columna de una tupla.
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‘N’ es el índice de columna, comenzando desde 1. N debe ser una constante. ‘N’ debe ser una constante. ‘N’ debe ser un entero postivo estricto no mayor que el tamaño de la tupla.
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No hay ningún costo para ejecutar la función.
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[Artículo Original](https://clickhouse.tech/docs/en/query_language/functions/in_functions/) <!--hide-->
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