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phpMyAdmin 2.11.7 (Default branch)
06-23-2008
phpMyAdmin is a tool intended to handle theadministration of MySQL over the Web. It cancreate, rename, and drop databases,create/drop/alter tables, delete/edit/add fields,execute any SQL statement, manage keys on fields,create dumps of tables and databases,export/import CSV data, and administrate onesingle database and multiple MySQL servers.|
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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)