log1p function

Applies to: Databricks SQL Databricks Runtime

Returns log(1 + expr).

Syntax

log1p(expr)

Arguments

• expr: An expression that evaluates to a numeric.

Returns

A DOUBLE.

If expr is less than or equal to -1 the result is NULL.

Examples

> SELECT log1p(0);
 1.0

Related functions

• log function
• ln function
• log10 function
• expm1 function
• e function
• exp function
• pow function