cleanup_digikamdb(1)													      cleanup_digikamdb(1)

NAME

       cleanup_digikamdb - Cleanup the digiKam databases to reduce their sizes and increase access speed

SYNOPSIS

       cleanup_digikamdb [-t] [-T] [-p] [-h]

OPTIONS

       -t     Include thumbnail databases.

       -T     Only cleanup thumbnail databases.

       -p path
	      Specify a different database path.  If the specified path is invalid, the entry from the configuration file will be used.

       -h     Show command line options.

DESCRIPTION

       cleanup_digikamdb  will cleanup and optimize the digiKam database file.	This will, in most cases, lead to a smaller database file size and
       an increased access speed, because unneeded elements are removed from the database and data is optimized.

       The program will make sure that no instance of digiKam is running, because it is more safe to have no database access during the  optimiza-
       tion  process.  It then will read the digiKam configuration file and determine the database location.  In a final step the database will be
       optimized by invoking the sqlite command 'VACUUM;' on it.  If more then one database is found in this location, cleanup_digikamdb will  op-
       timize every database found in this path and below.

       For further explanation, see the following description of the VACUUM command from the sqlite3 website:

       When  an object (table, index, or trigger) is dropped from the database, it leaves behind empty space.  This empty space will be reused the
       next time new information is added to the database.  But in the meantime, the database file might be larger than strictly necessary.  Also,
       frequent inserts, updates, and deletes can cause the information in the database to become fragmented - scrattered out all across the data-
       base file rather than clustered together in one place.

       The VACUUM command cleans the main database by copying its contents to a temporary database file and reloading the original  database  file
       from the copy.  This eliminates free pages, aligns table data to be contiguous, and otherwise cleans up the database file structure.

AUTHOR

       cleanup_digikamdb was written by Andi Clemens <andi dot clemens at gmx dot net>

cleanup_digikamdb						  14 October 2009					      cleanup_digikamdb(1)