For instructions about using these options, see Section 3.3.3, “Making a Compressed Backup”.
Create backup in compressed format. For a regular backup,
only the InnoDB data files are created in compressed
format, using the
For a single-image backup, all files (including InnoDB, MyISAM, .frm files, and so on) are compressed using the default compression level.
Default: compression is disabled. Default compression
level is 1 when compression is enabled. You can change the
amount of compression with the
Specifies the level of compression. Value 0 disables compression. Value 1 is fastest compression, and value 9 is highest (and slowest) compression.
Default: 1 (lowest and fastest compression). Explicitly
specifying a non-zero value through configuration file or
command line automatically enables the
--compress option as well.
When used with the
operation, uncompresses the compressed backup before
applying the InnoDB log.