GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.1 |
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drop_operator_class(7) |
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DROP OPERATOR CLASS − remove an operator class
DROP OPERATOR CLASS name USING index_method [ CASCADE | RESTRICT ]
DROP OPERATOR CLASS drops an existing operator class. To execute this command you must be the owner of the operator class.
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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.
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.
There is no DROP OPERATOR CLASS statement in the SQL standard.
ALTER OPERATOR CLASS [alter_operator_class(7)], CREATE OPERATOR CLASS [create_operator_class(l)]
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drop_operator_class(7) | |