DROP AGGREGATE FUNCTION

Drops a User Defined Aggregate Function (UDAF) from the Vertica catalog.

Syntax

DROP AGGREGATE FUNCTION [[database.]schema.]function[,…] 
... ( [ [argname] argtype[,…] ] )

`[database.]schema`	Specifies a schema, by default `public`. If schema is any schema other than `public`, you must supply the schema name. For example: myschema.thisDbObject If you specify a database, it must be the current database.
`function`	Specifies a name of the SQL function to drop. If the function name is schema-qualified, the function is dropped from the specified schema (as noted above).
`argname`	Specifies the name of the argument, typically a column name.
`argtype`	Specifies the data type for argument(s) that are passed to the function. Argument types must match Vertica type names. See SQL Data Types.

One of the following:

To drop a function, you must specify the argument types because several functions might share the same name with different parameters.
Vertica does not check for dependencies, so if you drop a SQL function where other objects reference it (such as views or other SQL functions), Vertica returns an error when those objects are used and not when the function is dropped.

The following command drops the ag_avg function:

=> DROP AGGREGATE FUNCTION ag_avg(numeric);
DROP AGGREGATE FUNCTION