drop_operator(7) [redhat man page]
DROP
OPERATOR(7) SQL Commands DROP OPERATOR(7) NAME
DROP OPERATOR - remove a user-defined operator SYNOPSIS
DROP OPERATOR id ( lefttype | NONE , righttype | NONE ) [ CASCADE | RESTRICT ] INPUTS id The identifier (optionally schema-qualified) of an existing operator. lefttype The type of the operator's left argument; write NONE if the operator has no left argument. righttype The type of the operator's right argument; write NONE if the operator has no right argument. CASCADE Automatically drop objects that depend on the operator. RESTRICT Refuse to drop the operator if there are any dependent objects. This is the default. OUTPUTS DROP OPERATOR The message returned if the command is successful. ERROR: RemoveOperator: binary operator 'oper' taking 'lefttype' and 'righttype' does not exist This message occurs if the specified binary operator does not exist. ERROR: RemoveOperator: left unary operator 'oper' taking 'lefttype' does not exist This message occurs if the left unary operator specified does not exist. ERROR: RemoveOperator: right unary operator 'oper' taking 'righttype' does not exist This message occurs if the right unary operator specified does not exist. DESCRIPTION
DROP OPERATOR drops an existing operator from the database. To execute this command you must be the owner of the operator. The left or right type of a left or right unary operator, respectively, must be specified as NONE. NOTES The DROP OPERATOR statement is a PostgreSQL language extension. Refer to CREATE OPERATOR [create_operator(7)] for information on how to create operators. USAGE
Remove power operator a^n for int4: DROP OPERATOR ^ (int4, int4); Remove left unary negation operator (! b) for boolean: DROP OPERATOR ! (none, bool); Remove right unary factorial operator (i !) for int4: DROP OPERATOR ! (int4, none); COMPATIBILITY
SQL92 There is no DROP OPERATOR in SQL92. SQL - Language Statements 2002-11-22 DROP OPERATOR(7)
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DROP OPERATOR
CLASS(7) SQL Commands DROP OPERATOR CLASS(7) NAME
DROP OPERATOR CLASS - remove an operator class SYNOPSIS
DROP OPERATOR CLASS [ IF EXISTS ] name USING index_method [ CASCADE | RESTRICT ] DESCRIPTION
DROP OPERATOR CLASS drops an existing operator class. To execute this command you must be the owner of the operator class. DROP OPERATOR CLASS does not drop any of the operators or functions referenced by the class. If there are any indexes depending on the operator class, you will need to specify CASCADE for the drop to complete. PARAMETERS
IF EXISTS Do not throw an error if the operator class does not exist. A notice is issued in this case. name The name (optionally schema-qualified) of an existing operator class. index_method The name of the index access method the operator class is for. CASCADE Automatically drop objects that depend on the operator class. RESTRICT Refuse to drop the operator class if any objects depend on it. This is the default. NOTES
DROP OPERATOR CLASS will not drop the operator family containing the class, even if there is nothing else left in the family (in particu- lar, in the case where the family was implicitly created by CREATE OPERATOR CLASS). An empty operator family is harmless, but for the sake of tidiness you might wish to remove the family with DROP OPERATOR FAMILY; or perhaps better, use DROP OPERATOR FAMILY in the first place. EXAMPLES
Remove the B-tree operator class widget_ops: DROP OPERATOR CLASS widget_ops USING btree; This command will not succeed if there are any existing indexes that use the operator class. Add CASCADE to drop such indexes along with the operator class. COMPATIBILITY
There is no DROP OPERATOR CLASS statement in the SQL standard. SEE ALSO
ALTER OPERATOR CLASS [alter_operator_class(7)], CREATE OPERATOR CLASS [create_operator_class(7)], DROP OPERATOR FAMILY [drop_operator_fam- ily(7)] SQL - Language Statements 2010-05-14 DROP OPERATOR CLASS(7)