There are several pages with long URLs that I need to track.
However, my PHP error log shows MySQL exceptions when trying to insert long urls in piwik tables.
After inspection, it appears piwik allocated only VARCHAR(255) for URLs. This is too restrictive for modern applications.
Internet Explorer limits its URLs to 2083 characters. Firefox has a limit of 65000 characters.
Either the piwik schema needs to be adjusted to reflect that or the logging code needs to truncate URLs to the first 255 characters (which may limit logging options).