phpman > man > DROP_AGGREGATE(7)

DROP AGGREGATE(7)                  PostgreSQL 14.23 Documentation                  DROP AGGREGATE(7)



NAME
       DROP_AGGREGATE - remove an aggregate function

SYNOPSIS
       DROP AGGREGATE [ IF EXISTS ] name ( aggregate_signature ) [, ...] [ CASCADE | RESTRICT ]

       where aggregate_signature is:

       * |
       [ argmode ] [ argname ] argtype [ , ... ] |
       [ [ argmode ] [ argname ] argtype [ , ... ] ] ORDER BY [ argmode ] [ argname ] argtype [ , ... ]

DESCRIPTION
       DROP AGGREGATE removes an existing aggregate function. To execute this command the current
       user must be the owner of the aggregate function.

PARAMETERS
       IF EXISTS
           Do not throw an error if the aggregate does not exist. A notice is issued in this case.

       name
           The name (optionally schema-qualified) of an existing aggregate function.

       argmode
           The mode of an argument: IN or VARIADIC. If omitted, the default is IN.

       argname
           The name of an argument. Note that DROP AGGREGATE does not actually pay any attention to
           argument names, since only the argument data types are needed to determine the aggregate
           function's identity.

       argtype
           An input data type on which the aggregate function operates. To reference a zero-argument
           aggregate function, write * in place of the list of argument specifications. To reference
           an ordered-set aggregate function, write ORDER BY between the direct and aggregated
           argument specifications.

       CASCADE
           Automatically drop objects that depend on the aggregate function (such as views using
           it), and in turn all objects that depend on those objects (see Section 5.14).

       RESTRICT
           Refuse to drop the aggregate function if any objects depend on it. This is the default.

NOTES
       Alternative syntaxes for referencing ordered-set aggregates are described under ALTER
       AGGREGATE (ALTER_AGGREGATE(7)).

EXAMPLES
       To remove the aggregate function myavg for type integer:

           DROP AGGREGATE myavg(integer);

       To remove the hypothetical-set aggregate function myrank, which takes an arbitrary list of
       ordering columns and a matching list of direct arguments:

           DROP AGGREGATE myrank(VARIADIC "any" ORDER BY VARIADIC "any");

       To remove multiple aggregate functions in one command:

           DROP AGGREGATE myavg(integer), myavg(bigint);

COMPATIBILITY
       There is no DROP AGGREGATE statement in the SQL standard.

SEE ALSO
       ALTER AGGREGATE (ALTER_AGGREGATE(7)), CREATE AGGREGATE (CREATE_AGGREGATE(7))



PostgreSQL 14.23                                2026                               DROP AGGREGATE(7)