Operator function reference

Functions used to implement SQL operators. These functions can be called directly, but it's typically more ergonomic to use the operator syntax.

Expression operators documentation:

• Arithmetic
• Comparison
• Logical

Functions that use reserved symbols, like > for "greater than", can be called directly by double-quoting the function name. For example, to call the > binary function:

SELECT ">"(8, 2); -- Returns true

Numeric operator functions

%

Returns the remainder after dividing the left value by the right value.

Example: 10 % 3

Output: 1

*

Multiplies two numeric values.

Example: 5 * 3

Output: 15

+

Adds two numeric values together.

Example: 5 + 3

Output: 8

-

Subtracts the right value from the left value.

Example: 10 - 4

Output: 6

/

Divides the left value by the right value.

Example: 15 / 3

Output: 5

add

Alias of +

Adds two numeric values together.

Example: 5 + 3

Output: 8

div

Alias of /

Divides the left value by the right value.

Example: 15 / 3

Output: 5

mul

Alias of *

Multiplies two numeric values.

Example: 5 * 3

Output: 15

rem

Alias of %

Returns the remainder after dividing the left value by the right value.

Example: 10 % 3

Output: 1

sub

Alias of -

Subtracts the right value from the left value.

Example: 10 - 4

Output: 6

Comparison operator functions

!=

Check if two values are not equal. Returns NULL if either argument is NULL.

Example: a != b

Output: false

<

Check if the left value is less than the right. Returns NULL if either argument is NULL.

Example: a < b

Output: false

<=

Check if the left value is less than or equal to the right. Returns NULL if either argument is NULL.

Example: a <= b

Output: false

<>

Alias of !=

Check if two values are not equal. Returns NULL if either argument is NULL.

Example: a != b

Output: false

=

Check if two values are equal. Returns NULL if either argument is NULL.

Example: a = b

Output: true

>

Check if the left value is greater than the right. Returns NULL if either argument is NULL.

Example: a > b

Output: false

>=

Check if the left value is greater than or equal to the right. Returns NULL if either argument is NULL.

Example: a >= b

Output: false

is_distinct_from

Check if two values are not equal, treating NULLs as normal data values.

Example: 'cat' IS DISTINCT FROM NULL

Output: true

is_false

Check if a value is false.

Example: is_false(false)

Output: true

is_not_distinct_from

Check if two values are equal, treating NULLs as normal data values.

Example: 'cat' IS NOT DISTINCT FROM NULL

Output: false

is_not_false

Check if a value is not false.

Example: is_not_false(false)

Output: false

is_not_null

Check if a value is not NULL.

Example: is_not_null(NULL)

Output: false

is_not_true

Check if a value is not true.

Example: is_not_true(false)

Output: true

is_null

Check if a value is NULL.

Example: is_null(NULL)

Output: true

is_true

Check if a value is true.

Example: is_true(false)

Output: false

Logical operator functions

and

Boolean and all inputs.

Example: and(true, false, true)

Output: false

not

Returns TRUE if the input is FALSE, and FALSE if the input is TRUE.

Example: not(TRUE)

Output: FALSE

or

Boolean or all inputs.

Example: or(true, false, true)

Output: true