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Math functions

Cloudflare Pipelines scalar function implementations are based on Apache DataFusion ↗ (via Arroyo ↗) and these docs are derived from the DataFusion function reference.

`abs`

Returns the absolute value of a number.

abs(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`acos`

Returns the arc cosine or inverse cosine of a number.

acos(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`acosh`

Returns the area hyperbolic cosine or inverse hyperbolic cosine of a number.

acosh(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`asin`

Returns the arc sine or inverse sine of a number.

asin(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`asinh`

Returns the area hyperbolic sine or inverse hyperbolic sine of a number.

asinh(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`atan`

Returns the arc tangent or inverse tangent of a number.

atan(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`atanh`

Returns the area hyperbolic tangent or inverse hyperbolic tangent of a number.

atanh(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`atan2`

Returns the arc tangent or inverse tangent of expression_y / expression_x.

atan2(expression_y, expression_x)

Arguments

expression_y: First numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.
expression_x: Second numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`cbrt`

Returns the cube root of a number.

cbrt(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`ceil`

Returns the nearest integer greater than or equal to a number.

ceil(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`cos`

Returns the cosine of a number.

cos(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`cosh`

Returns the hyperbolic cosine of a number.

cosh(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`degrees`

Converts radians to degrees.

degrees(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`exp`

Returns the base-e exponential of a number.

exp(numeric_expression)

Arguments

numeric_expression: Numeric expression to use as the exponent. Can be a constant, column, or function, and any combination of arithmetic operators.

`factorial`

Factorial. Returns 1 if value is less than 2.

factorial(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`floor`

Returns the nearest integer less than or equal to a number.

floor(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`gcd`

Returns the greatest common divisor of expression_x and expression_y. Returns 0 if both inputs are zero.

gcd(expression_x, expression_y)

Arguments

expression_x: First numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.
expression_y: Second numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`isnan`

Returns true if a given number is +NaN or -NaN otherwise returns false.

isnan(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`iszero`

Returns true if a given number is +0.0 or -0.0 otherwise returns false.

iszero(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`lcm`

Returns the least common multiple of expression_x and expression_y. Returns 0 if either input is zero.

lcm(expression_x, expression_y)

Arguments

expression_x: First numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.
expression_y: Second numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`ln`

Returns the natural logarithm of a number.

ln(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`log`

Returns the base-x logarithm of a number. Can either provide a specified base, or if omitted then takes the base-10 of a number.

log(base, numeric_expression)
log(numeric_expression)

Arguments

base: Base numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.
numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`log10`

Returns the base-10 logarithm of a number.

log10(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`log2`

Returns the base-2 logarithm of a number.

log2(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`nanvl`

Returns the first argument if it's not NaN. Returns the second argument otherwise.

nanvl(expression_x, expression_y)

Arguments

expression_x: Numeric expression to return if it's not NaN. Can be a constant, column, or function, and any combination of arithmetic operators.
expression_y: Numeric expression to return if the first expression is NaN. Can be a constant, column, or function, and any combination of arithmetic operators.

`pi`

Returns an approximate value of π.

pi()

`power`

Returns a base expression raised to the power of an exponent.

power(base, exponent)

Arguments

base: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.
exponent: Exponent numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

Aliases

`pow`

Alias of power.

`radians`

Converts degrees to radians.

radians(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`random`

Returns a random float value in the range [0, 1). The random seed is unique to each row.

random()

`round`

Rounds a number to the nearest integer.

round(numeric_expression[, decimal_places])

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.
decimal_places: Optional. The number of decimal places to round to. Defaults to 0.

`signum`

Returns the sign of a number. Negative numbers return -1. Zero and positive numbers return 1.

signum(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`sin`

Returns the sine of a number.

sin(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`sinh`

Returns the hyperbolic sine of a number.

sinh(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`sqrt`

Returns the square root of a number.

sqrt(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`tan`

Returns the tangent of a number.

tan(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`tanh`

Returns the hyperbolic tangent of a number.

tanh(numeric_expression)

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.

`trunc`

Truncates a number to a whole number or truncated to the specified decimal places.

trunc(numeric_expression[, decimal_places])

Arguments

numeric_expression: Numeric expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators.
decimal_places: Optional. The number of decimal places to truncate to. Defaults to 0 (truncate to a whole number). If decimal_places is a positive integer, truncates digits to the right of the decimal point. If decimal_places is a negative integer, replaces digits to the left of the decimal point with 0.