drop_index(7) [osx man page]

DROP 
INDEX(7)							   SQL Commands 						     DROP INDEX(7)

NAME

       DROP INDEX - remove an index

SYNOPSIS

       DROP INDEX [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]

DESCRIPTION

       DROP INDEX drops an existing index from the database system. To execute this command you must be the owner of the index.

PARAMETERS

       IF EXISTS
	      Do not throw an error if the index does not exist. A notice is issued in this case.

       name   The name (optionally schema-qualified) of an index to remove.

       CASCADE
	      Automatically drop objects that depend on the index.

       RESTRICT
	      Refuse to drop the index if any objects depend on it. This is the default.

EXAMPLES

       This command will remove the index title_idx:

       DROP INDEX title_idx;

COMPATIBILITY

       DROP INDEX is a PostgreSQL language extension. There are no provisions for indexes in the SQL standard.

SEE ALSO

       CREATE INDEX [create_index(7)]

SQL - Language Statements					    2010-05-14							     DROP INDEX(7)

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)