GRASS modules require 2 parameters to connect to a database.
Those parameters are 'driver' and 'database'. For MySQL embedded
driver the parameter 'driver' should be set to value 'mesql'.
The parameter 'database' is a full path to the directory
where database tables are stored. The best place is
a directory in the mapset. The directory must be created
before use of the driver. In the name of database
it is possible to use 3 variables:
The embedded server is started with hardcoded '--bootstrap'
option to avoid warning about missing
"mysql.time_zone_leap_second table". This can be fixed in future.
Attempting to use a reserved SQL word as column or table name will result
in a "SQL syntax" error. The list of reserved words for MySQL can be
found in the MySQL manual.