elasticsearch/docs/reference/query-languages/esql/_snippets/functions/signum.md

SIGNUM [esql-signum]

Syntax

:::{image} ../../../../../images/signum.svg :alt: Embedded :class: text-center :::

Parameters

number

Numeric expression. If null, the function returns null.

Description

Returns the sign of the given number. It returns -1 for negative numbers, 0 for 0 and 1 for positive numbers.

Supported types

number	result
double	double
integer	double
long	double
unsigned_long	double

Example

ROW d = 100.0
| EVAL s = SIGNUM(d)

d: double	s:double
100	1.0