Same error when I upgrade from 3.2.0 to 3.3.0:
root@santa-maria:~/mattermost-docker2# docker-compose up
Starting mattermostdocker2_db_1
Recreating mattermostdocker2_app_1
Recreating mattermostdocker2_web_1
Attaching to mattermostdocker2_db_1, mattermostdocker2_app_1, mattermostdocker2_web_1
app_1 | Configure database connection...SKIP
app_1 | Wait until database db:5432 is ready...
db_1 | AWS_ACCESS_KEY_ID is required for Wal-E but not set. Skipping Wal-E setup.
db_1 | LOG: database system was interrupted; last known up at 2016-10-26 21:52:01 CEST
web_1 | Starting Nginx
db_1 | LOG: database system was not properly shut down; automatic recovery in progress
db_1 | LOG: redo starts at 128/71000090
db_1 | LOG: record with zero length at 128/730000B8
db_1 | LOG: redo done at 128/73000088
db_1 | LOG: last completed transaction was at log time 2016-10-26 21:54:08.393664+02
db_1 | LOG: MultiXact member wraparound protections are now enabled
db_1 | LOG: database system is ready to accept connections
db_1 | LOG: autovacuum launcher started
db_1 | LOG: incomplete startup packet
app_1 | Starting platform
db_1 | ERROR: relation "idx_oauthaccessdata_client_id" does not exist
db_1 | STATEMENT: SELECT $1::regclass
db_1 | ERROR: relation "idx_oauthaccessdata_user_id" does not exist
db_1 | STATEMENT: SELECT $1::regclass
db_1 | ERROR: relation "idx_oauthaccessdata_refresh_token" does not exist
db_1 | STATEMENT: SELECT $1::regclass
db_1 | ERROR: relation "idx_status_user_id" does not exist
db_1 | STATEMENT: SELECT $1::regclass
db_1 | ERROR: relation "idx_status_status" does not exist
db_1 | STATEMENT: SELECT $1::regclass