to_milliseconds#

Description#

Convert a duration to a number of milliseconds.

The input is always of type duration, the output is a float64 representing the number of milliseconds (whole and fractions) of that duration.

Return type#

float64

Domain#

This is a scalar function (calculates a single output value for a single input row.)

Categories#

Usage#

to_milliseconds(duration)

Argument

Type

Optional

Repeatable

Restrictions

duration

duration

no

no

none

Examples#

make_col milliseconds:to_milliseconds(stopTime - startTime)

Assuming stopTime and startTime are timestamps, subtracting them yields a duration. That duration is then converted to number of milliseconds using to_milliseconds.