aria_pack − generate compressed, read−only Aria tables


aria_pack [OPTIONS] filename...


Pack a Aria−table to take much less space. Keys are not updated, you must run aria_chk −rq on the index (.MAI) file afterwards to update the keys. You should give the .MAI file as the filename argument. To unpack a packed table, run aria_chk −u on the table
, −−backup

Make a backup of the table as table_name.OLD.


Directory where character sets are.

−#, −−debug[=name]

Output debug log. Often this is ’d:t:o,filename’.

−f, −−force

Force packing of table even if it gets bigger or if tempfile exists.

−j, −−join=name

Join all given tables into ’new_table_name’. All tables MUST have identical layouts.

−?, −−help

Display this help and exit.

−s, −−silent

Be more silent.

−T, −−tmpdir=name

Use temporary directory to store temporary table.

−t, −−test

Don’t pack table, only test packing it.

−v, −−verbose

Write info about progress and packing result. Use many −v for more verbosity!

−V, −−version

Output version information and exit.

−w, −−wait

Wait and retry if table is in use.

Default options are read from the following files in the given order: /etc/my.cnf /etc/mysql/my.cnf ~/.my.cnf

The following groups are read: ariapack

The following options may be given as the first argument:

Print the program argument list and exit.


Don’t read default options from any option file.


Only read default options from the given file #.


Read this file after the global files are read.



For more information, please refer to the MariaDB Knowledge Base, which is available online at


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