Redmine

Just upgrade to Redmine 1.0.2 and migrated the database from MySQL to PostgreSQL. Now some SQL-Queries fail, so I couldn't access any page. Here is the information from the log file:

Processing WelcomeController#index (for X.X.X.X at 2010-10-31 17:14:07) [GET]
  Parameters: {"action"=>"index", "controller"=>"welcome"}

ActiveRecord::StatementInvalid (PGError: FEHLER:  ungültige Eingabesyntax für ganze Zahl: »t«
LINE 1: ...em.name='news')) AND (1=0 OR projects.is_public = 't')))  OR...
                                                             ^
: SELECT "news"."id" AS t0_r0, "news"."project_id" AS t0_r1, "news"."title" AS t0_r2, "news"."summary" AS t0_r3,
"news"."description" AS t0_r4, "news"."author_id" AS t0_r5, "news"."created_on" AS t0_r6, "news"."comments_count" 
AS t0_r7, "users"."id" AS t1_r0, "users"."login" AS t1_r1, "users"."hashed_password" AS t1_r2, "users"."firstname" 
AS t1_r3, "users"."lastname" AS t1_r4, "users"."mail" AS t1_r5, "users"."mail_notification" AS t1_r6, "users"."admin" 
AS t1_r7, "users"."status" AS t1_r8, "users"."last_login_on" AS t1_r9, "users"."language" AS t1_r10,
"users"."auth_source_id" AS t1_r11, "users"."created_on" AS t1_r12, "users"."updated_on" AS t1_r13, "users"."type" 
AS t1_r14, "users"."identity_url" AS t1_r15, "projects"."id" AS t2_r0, "projects"."name" AS t2_r1,
"projects"."description" AS t2_r2, "projects"."homepage" AS t2_r3, "projects"."is_public" AS t2_r4, "projects"."parent_id" 
AS t2_r5, "projects"."created_on" AS t2_r6, "projects"."updated_on" AS t2_r7, "projects"."identifier" AS t2_r8,
"projects"."status" AS t2_r9, "projects"."lft" AS t2_r10, "projects"."rgt" AS t2_r11 FROM "news"  LEFT OUTER JOIN
"users" ON "users".id = "news".author_id AND  ("users"."type" = 'User' OR "users"."type" = 'AnonymousUser' ) 
LEFT OUTER JOIN "projects" ON "projects".id = "news".project_id WHERE (((projects.status=1 AND projects.id
IN (SELECT em.project_id FROM enabled_modules em WHERE em.name='news')) AND
(1=0 OR projects.is_public = 't')))  ORDER BY news.created_on DESC LIMIT 5):
  app/models/news.rb:38:in `latest'
  app/controllers/welcome_controller.rb:22:in `index'
  passenger (3.0.0) lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
  passenger (3.0.0) lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
  passenger (3.0.0) lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
  passenger (3.0.0) lib/phusion_passenger/classic_rails/application_spawner.rb:321:in `start_request_handler'
  passenger (3.0.0) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `send'
  passenger (3.0.0) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `handle_spawn_application'
  passenger (3.0.0) lib/phusion_passenger/utils.rb:479:in `safe_fork'
  passenger (3.0.0) lib/phusion_passenger/classic_rails/application_spawner.rb:270:in `handle_spawn_application'
  passenger (3.0.0) lib/phusion_passenger/abstract_server.rb:357:in `__send__'
  passenger (3.0.0) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  passenger (3.0.0) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  passenger (3.0.0) lib/phusion_passenger/abstract_server.rb:180:in `start'
  passenger (3.0.0) lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start'
  passenger (3.0.0) lib/phusion_passenger/spawn_manager.rb:219:in `spawn_rails_application'
  passenger (3.0.0) lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
  passenger (3.0.0) lib/phusion_passenger/spawn_manager.rb:214:in `spawn_rails_application'
  passenger (3.0.0) lib/phusion_passenger/abstract_server_collection.rb:82:in `synchronize'
  passenger (3.0.0) lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
  passenger (3.0.0) lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application'
  passenger (3.0.0) lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application'
  passenger (3.0.0) lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
  passenger (3.0.0) lib/phusion_passenger/abstract_server.rb:357:in `__send__'
  passenger (3.0.0) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  passenger (3.0.0) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  passenger (3.0.0) helper-scripts/passenger-spawn-server:99

Rendering /srv/redmine/application/redmine-1.0/public/500.html (500 Internal Server Error)

My environment is: Debian Lenny, ruby-enterprise-edition 1.8.7, rails 2.3.5 (for redmine), redmine in the 1.0.x subversion branch. Database is a postgresql 8.4.