This adapter is an almost complete rewrite of the original Sybase adapter by John R. Sheets, brought up to date with Rails 3.1 and with the database driver changed from the original Sybase CT with Tiny TDS.
It depends on a sybase Visitor for AREL that implements LIMIT and OFFSET using Cursors on ASE 15 and temp tables on ASE 12.5. Because of this difference, the adapter does NOT depend explicitly on the visitor, but rather you must use Bundler to require the branch you need in your Gemfile.
We are not releasing this adapter on rubygems.org in order to not disrupt live rails application depending on the age old adapter still available on gems.rubyonrails.org.
Tiny TDS support was initiated by Darrin Thompson darrinth@gmail.com and completed by Marcello Barnaba vjt@openssl.it. Rails 3.1 support, Code reordering and clean up thanks to Simone Carletti weppos@weppos.net.
The adapter is being used in production with a Sybase ASE 16.2 using a specific (non-ASCII) charset. Column names with non-ASCII characters are accepted. Test cases have been created (and are planned to be released) for rails version 3.2.22.5.