ClickHouse/docs/en/sql-reference/aggregate-functions/reference/anylast.md

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anyLast

Selects the last value encountered, ignoring any NULL values by default. The result is just as indeterminate as for the any function.

Syntax

anyLast(column) [RESPECT NULLS]

Parameters

• column: The column name.

:::note

By default, the anyLast function never returns NULL. However, it supports the RESPECT NULLS modifier after the function name, which will ensure the function selects the last value passed, regardless of whether it is NULL or not.

Alias: anyLastRespectNulls
:::

Returned value

• The last value encountered.

Example

Query:

CREATE TABLE any_last_nulls (city Nullable(String)) ENGINE=Log;

INSERT INTO any_last_nulls (city) VALUES ('Amsterdam'),(NULL),('New York'),('Tokyo'),('Valencia'),(NULL);

SELECT anyLast(city), anyLastRespectNulls(city) FROM any_last_nulls;

┌─anyLast(city)─┬─anyLastRespectNulls(city)─┐
│ Valencia      │ ᴺᵁᴸᴸ                      │
└───────────────┴───────────────────────────┘