elasticsearch/docs/reference/sql/language/syntax/commands/show-functions.asciidoc

[role="xpack"]
[testenv="basic"]
[[sql-syntax-show-functions]]
=== SHOW FUNCTIONS

.Synopsis
[source, sql]
----
SHOW FUNCTIONS [LIKE pattern?]? <1>
----

<1> SQL match pattern

.Description

List all the SQL functions and their type. The `LIKE` clause can be used to restrict the list of names to the given pattern.

[source, sql]
----
include-tagged::{sql-specs}/docs/docs.csv-spec[showFunctions]
----

The list of functions returned can be customized based on the pattern.

It can be an exact match:
[source, sql]
----
include-tagged::{sql-specs}/docs/docs.csv-spec[showFunctionsLikeExact]
----

A wildcard for exactly one character:
[source, sql]
----
include-tagged::{sql-specs}/docs/docs.csv-spec[showFunctionsLikeChar]
----

A wildcard matching zero or more characters:
[source, sql]
----
include-tagged::{sql-specs}/docs/docs.csv-spec[showFunctionsLikeWildcard]
----

Or of course, a variation of the above:
[source, sql]
----
include-tagged::{sql-specs}/docs/docs.csv-spec[showFunctionsWithPattern]
----