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DROP ROUTINE

DROP ROUTINE — remove a routine

Synopsis

DROP ROUTINE [ IF EXISTS ]name [ ( [ [argmode ] [argname ]argtype [, ...] ] ) ] [, ...]    [ CASCADE | RESTRICT ]

Description

DROP ROUTINE removes the definition of one or more existing routines. The term“routine” includes aggregate functions, normal functions, and procedures. See underDROP AGGREGATE,DROP FUNCTION, andDROP PROCEDURE for the description of the parameters, more examples, and further details.

Notes#

The lookup rules used byDROP ROUTINE are fundamentally the same as forDROP PROCEDURE; in particular,DROP ROUTINE shares that command's behavior of considering an argument list that has noargmode markers to be possibly using the SQL standard's definition thatOUT arguments are included in the list. (DROP AGGREGATE andDROP FUNCTION do not do that.)

In some cases where the same name is shared by routines of different kinds, it is possible forDROP ROUTINE to fail with an ambiguity error when a more specific command (DROP FUNCTION, etc.) would work. Specifying the argument type list more carefully will also resolve such problems.

These lookup rules are also used by other commands that act on existing routines, such asALTER ROUTINE andCOMMENT ON ROUTINE.

Examples#

To drop the routinefoo for typeinteger:

DROP ROUTINE foo(integer);

This command will work independent of whetherfoo is an aggregate, function, or procedure.

Compatibility#

This command conforms to the SQL standard, with thesePostgres Pro extensions:

See Also

Note that there is noCREATE ROUTINE command.