Installation problems with ldapdata and psql

I am using PostgreSQL and ldap_integration. When I tried enabling ldapdata, I got numerous errors about columns that weren't found in the database. After taking a quick look at ldapauth.install it was easy to see why: The columns in question were not created in my postgres-database.

I added the columns using ALTER TABLE, which removed the errors on enabling ldapdata. I created a patch to change ldapauth.install to include the new columns.
I had to change the type of ldapdata_rwattrs, ldapdata_roattrs and ldapdata_mappings from LONGTEXT to TEXT, as PostgreSQL does not have a type LONGTEXT.