Error: Too big precision 14 specified for 'time'. Maximum is 6.

Can you please post the SQL query (or queries) that returned this error?
Thanks.

It happens when creating a new table that contains a field set like this:

time timestamp(14)

It works when it's set back to 6 instead of 14.

Thanks

MariaDB supports up to 6 fractional digits in date/time data types.
There are no plans to support more digits.

For a field definition like TIMESTAMP(N) the meaning of the number N has changed when MariaDB (and later MySQL) introduced sub-second precision. This happened in MariaDB-5.3 and MySQL-5.6.

Older versions interpret N as display width, like for INT columns. Versions with high resolution timestamp interpret N as the number of fractional digits.

See also: https://mariadb.com/kb/en/microseconds-in-mariadb/

PS: the usage of a display width for a TIMESTAMP column has been poperly deprecated and yields

warning 1287
'TIMESTAMP(14)' is deprecated and will be removed in a future release. Please use 'TIMESTAMP' instead

in MariaDB-5.1 and MariaDB-5.2. Also mysqldump does not write a display width for TIMESTAMP columns any more. So if you have a CREATE TABLE statement with TIMESTAMP(14) it must be from a very old dump or otherwise a very old tool.