zendframework/zf2 — pull request #6250 by turrsis (2014-05-09 10:49:24+00:00)
Title: Db\Sql\Update use sortable set

For compatibility with http://dev.mysql.com/doc/refman/5.0/en/ansi-diff-update.html.
Because sometime set list should be reordable, as sample for moving nodes in NestedSets tables.

this is reorganized from https://github.com/zendframework/zf2/pull/5485