Is it possible to re-load the install-ex.php for a live Couch site?
Reloading install-ex.php would mean reinstalling Couch (the database part of it).
If that is what you want, one quick way would be to find the following line in config.php
define( 'K_DB_TABLES_PREFIX', '' );
and changing it to something, like -
define( 'K_DB_TABLES_PREFIX', 'new_' );
By doing this we are instructing Couch to prefix all its tables in the database with the given string (new_
in our example above).
The next time you run Couch, it senses that the prefixed tables are not present and it initiates the install routine creating the new tables and (important to us) also re-loading the install-ex.php
The original table (along with the old data) will remain present (although unused) in the database.
You may choose to remove them any time using phpMyAdmin.
Hope this helps.