ES|QL `DAY_NAME` function

Syntax

Embedded

Parameters

date: Date expression. If null, the function returns null.

Description

Returns the name of the weekday for date based on the configured Locale.

Supported types

date	result
date	keyword
date_nanos	keyword

Example

		ROW dt = to_datetime("1953-09-02T00:00:00.000Z")
| EVAL weekday = DAY_NAME(dt);