remove a conversion NAME DROP_CONVERSION - remove a conversion SYNOPSIS DROP CONVERSION [ IF EXISTS ] name [ CASCADE | RESTRICT ]......ERSION ( ALTER_CONVERSION (7)), CREATE FUNCTION ( CREATE_FUNCTION (7)), DROP CONVERSION ( DROP_CONVERSION (7))define a new cast NAME CREATE_CAST - define a new cast SYNOPSIS CREATE CAST ( source_type AS target_type ) WITH FUNCTION function_name [ ( argument_type [, ...]) ] [ AS ASSIGNMENT …...the SQL standard. SEE ALSO CREATE CONVERSION ( CREATE_CONVERSION (7)), DROP CONVERSION ( DROP_CONVERSION (7))change the definition of an extension NAME ALTER_EXTENSION - change the definition of an extension SYNOPSIS ALTER EXTENSION name UPDATE [ TO new_version ] ALTER EXTENSION name SET …change the definition of a table NAME ALTER_TABLE - change the definition of a table SYNOPSIS ALTER TABLE [ IF EXISTS ] [ ONLY ] name [ * ] action [, ... ] ALTER TABLE [ IF EXISTS …remove a routine NAME DROP_ROUTINE - remove a routine SYNOPSIS DROP ROUTINE [ IF EXISTS ] name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] [, ...] [ CASCADE | RESTRICT ] DE…remove an operator class NAME DROP_OPERATOR_CLASS - remove an operator class SYNOPSIS DROP OPERATOR CLASS [ IF EXISTS ] name USING index_method [ CASCADE | RESTRICT ] DESCRIPTION D…remove an index NAME DROP_INDEX - remove an index SYNOPSIS DROP INDEX [ CONCURRENTLY ] [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ] DESCRIPTION DROP INDEX drops an existing in…remove a function NAME DROP_FUNCTION - remove a function SYNOPSIS DROP FUNCTION [ IF EXISTS ] name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] [, ...] [ CASCADE | RESTRICT …remove a procedure NAME DROP_PROCEDURE - remove a procedure SYNOPSIS DROP PROCEDURE [ IF EXISTS ] name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] [, ...] [ CASCADE | RESTR…remove an operator family NAME DROP_OPERATOR_FAMILY - remove an operator family SYNOPSIS DROP OPERATOR FAMILY [ IF EXISTS ] name USING index_method [ CASCADE | RESTRICT ] DESCRIPTI…remove a procedural language NAME DROP_LANGUAGE - remove a procedural language SYNOPSIS DROP [ PROCEDURAL ] LANGUAGE [ IF EXISTS ] name [ CASCADE | RESTRICT ] DESCRIPTION DROP LANG…remove a rewrite rule NAME DROP_RULE - remove a rewrite rule SYNOPSIS DROP RULE [ IF EXISTS ] name ON table_name [ CASCADE | RESTRICT ] DESCRIPTION DROP RULE drops a rewrite rule. …remove a collation NAME DROP_COLLATION - remove a collation SYNOPSIS DROP COLLATION [ IF EXISTS ] name [ CASCADE | RESTRICT ] DESCRIPTION DROP COLLATION removes a previously define…remove an access method NAME DROP_ACCESS_METHOD - remove an access method SYNOPSIS DROP ACCESS METHOD [ IF EXISTS ] name [ CASCADE | RESTRICT ] DESCRIPTION DROP ACCESS METHOD remov…remove a database role NAME DROP_GROUP - remove a database role SYNOPSIS DROP GROUP [ IF EXISTS ] name [, ...] DESCRIPTION DROP GROUP is now an alias for DROP ROLE . COMPATIBILITY …remove a database role NAME DROP_ROLE - remove a database role SYNOPSIS DROP ROLE [ IF EXISTS ] name [, ...] DESCRIPTION DROP ROLE removes the specified role(s). To drop a superuse…remove a subscription NAME DROP_SUBSCRIPTION - remove a subscription SYNOPSIS DROP SUBSCRIPTION [ IF EXISTS ] name [ CASCADE | RESTRICT ] DESCRIPTION DROP SUBSCRIPTION removes a su…remove a database role NAME DROP_USER - remove a database role SYNOPSIS DROP USER [ IF EXISTS ] name [, ...] DESCRIPTION DROP USER is simply an alternate spelling of DROP ROLE . CO…