SHOW FUNCTIONS¶

Lists all functions that you have privileges to access, including built-in, user-defined, and external functions.

For a command that lists only user-defined functions, see SHOW USER FUNCTIONS.

See also:: SHOW USER FUNCTIONS , SHOW EXTERNAL FUNCTIONS , SHOW FUNCTIONS IN MODEL , CREATE FUNCTION , DROP FUNCTION , ALTER FUNCTION , DESCRIBE FUNCTION

Syntax¶

SHOW FUNCTIONS [ LIKE '<pattern>' ]
  [ IN
    {
      ACCOUNT                       |

      CLASS <class_name>            |

      DATABASE                      |
      DATABASE <database_name>      |

      SCHEMA                        |
      SCHEMA <schema_name>          |
      <schema_name>
    }
  ]

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Parameters¶

LIKE 'pattern'

Optionally filters the command output by object name. The filter uses case-insensitive pattern matching, with support for SQL wildcard characters (% and _).

For example, the following patterns return the same results:

... LIKE '%testing%' ...

... LIKE '%TESTING%' ...

. Default: No value (no filtering is applied to the output).

[ IN ... ]

Optionally specifies the scope of the command. Specify one of the following:

ACCOUNT

Returns records for the entire account.

CLASS class_name

Returns records for the specified class (class_name).

DATABASE, . DATABASE db_name

Returns records for the current database in use or a specified database (db_name).

If you specify DATABASE without db_name and no database is in use, the keyword has no effect on the output.

Note

Using SHOW commands without an IN clause in a database context can result in fewer than expected results.

Objects with the same name are only displayed once if no IN clause is used. For example, if you have table t1 in schema1 and table t1 in schema2, and they are both in scope of the database context you’ve specified (that is, the database you’ve selected is the parent of schema1 and schema2), then SHOW TABLES only displays one of the t1 tables.

SCHEMA, . SCHEMA schema_name

Returns records for the current schema in use or a specified schema (schema_name).

SCHEMA is optional if a database is in use or if you specify the fully-qualified schema_name (e.g. db.schema).

If no database is in use, specifying SCHEMA has no effect on the output.

Default: Depends on whether the session currently has a database in use:

Database: DATABASE is the default (that is, the command returns the objects you have privileges to view in the database).
No database: ACCOUNT is the default (that is, the command returns the objects you have privileges to view in your account).

Output¶

The command output provides function properties and metadata in the following columns:

Column	Description
`created_on`	Timestamp at which the function was created.
`name`	Name of the function.
`schema_name`	Name of the schema that the function exists in. NULL for built-in functions.
`is_builtin`	`Y` if the function is a built-in function; `N` otherwise.
`is_aggregate`	`Y` if the function is an aggregate function; `N` otherwise.
`is_ansi`	`Y` if the function is defined as part of the ANSI SQL standard; `N` otherwise.
`min_num_arguments`	Minimum number of arguments.
`max_num_arguments`	Maximum number of arguments.
`arguments`	Shows the data types of the arguments and of the return value.
`description`	Description of the function.
`catalog_name`	Name of the database that the function exists in. NULL for built-in functions.
`is_table_function`	`Y` if the function is a table function; `N` otherwise.
`valid_for_clustering`	`Y` if the function can be used in a CLUSTER BY expression; `N` otherwise.
`is_secure`	`Y` if the function is a secure function; `N` otherwise.
`is_external_function`	`Y` if the function is an external function; `N` otherwise.
`language`	For built-in functions, this column shows `SQL`. For user-defined functions, this column shows the language in which the function was written, such as `JAVASCRIPT` or `SQL`. See SHOW USER FUNCTIONS. For external functions, this column shows `EXTERNAL`.
`is_memoizable`	`Y` if the function is memoizable; `N` otherwise.
`is_data_metric`	`Y` if the function is a DMF; `N` otherwise.

Usage notes¶

If you specify CLASS, the command only returns the following columns:

| name | min_num_arguments | max_num_arguments | arguments | descriptions | language |

The output of this command might include objects with names like SN_TEMP_OBJECT_<n> (where <n> is a number). These are temporary objects that are created by the Snowpark library on behalf of the user.

The command doesn’t require a running warehouse to execute.
The command only returns objects for which the current user’s current role has been granted at least one access privilege.
The MANAGE GRANTS access privilege implicitly allows its holder to see every object in the account. By default, only the account administrator (users with the ACCOUNTADMIN role) and security administrator (users with the SECURITYADMIN role) have the MANAGE GRANTS privilege.

To post-process the output of this command, you can use the RESULT_SCAN function, which treats the output as a table that can be queried.

The command returns a maximum of ten thousand records for the specified object type, as dictated by the access privileges for the role used to execute the command. Any records above the ten thousand records limit aren’t returned, even with a filter applied.

To view results for which more than ten thousand records exist, query the corresponding view (if one exists) in the Snowflake Information Schema.

Examples¶

Show all functions:

SHOW FUNCTIONS;

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Show only functions matching the specified regular expression:

SHOW FUNCTIONS LIKE 'SQUARE';

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------------+--------+-------------+------------+--------------+---------+-------------------+-------------------+----------------------------------------------------------------------+------------------------------------------------------------+----------+---------------+----------------+
 created_on | name   | schema_name | is_builtin | is_aggregate | is_ansi | min_num_arguments | max_num_arguments |                               arguments                              |                      description                           | language | is_memoizable | is_data_metric |
------------+--------+-------------+------------+--------------+---------+-------------------+-------------------+----------------------------------------------------------------------+------------------------------------------------------------+----------+---------------+----------------+
            | SQUARE |             | Y          | N            | Y       | 1                 | 1                 | SQUARE(NUMBER(38,0)) RETURN NUMBER(38,0), SQUARE(FLOAT) RETURN FLOAT | Compute the square of the input expression.                | SQL      | N             | N              |
------------+--------+-------------+------------+--------------+---------+-------------------+-------------------+----------------------------------------------------------------------+------------------------------------------------------------+----------+---------------+----------------+