DROP FUNCTION(7) SQL Commands DROP FUNCTION(7) NAME DROP FUNCTION - SYNOPSIS DROP FUNCTION name ( [ type [, ...] ] ) [ CASCADE | RESTRICT ] DESCRIPTION DROP FUNCTION PARAMETERS name type CASCADE RESTRICT EXAMPLES DROP FUNCTION sqrt(integer); COMPATIBILITY SQL DROP FUNCTION SEE ALSO CREATE FUNCTION [create_function(7)], ALTER FUNCTION [alter_function(l)] Postgresql man man https://github.com/man-pages-zh/manpages- zh SQL - Language Statements 2003-11-02 DROP FUNCTION(7)