DROP_INDEX man page on Cygwin

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DROP INDEX(7)		PostgreSQL 9.3.2 Documentation		 DROP INDEX(7)

NAME
       DROP_INDEX - remove an index

SYNOPSIS
       DROP INDEX [ CONCURRENTLY ] [ 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
       CONCURRENTLY
	   Drop the index without locking out concurrent selects, inserts,
	   updates, and deletes on the index's table. A normal DROP INDEX
	   acquires exclusive lock on the table, blocking other accesses until
	   the index drop can be completed. With this option, the command
	   instead waits until conflicting transactions have completed.

	   There are several caveats to be aware of when using this option.
	   Only one index name can be specified, and the CASCADE option is not
	   supported. (Thus, an index that supports a UNIQUE or PRIMARY KEY
	   constraint cannot be dropped this way.) Also, regular DROP INDEX
	   commands can be performed within a transaction block, but DROP
	   INDEX CONCURRENTLY cannot.

       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))

PostgreSQL 9.3.2		     2013			 DROP INDEX(7)
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