Postgres Database Error: relation does not exist

Question

I am fixing some problems with a legacy system and have run into a snag that I am surprised was not caught sooner. I am running Django 1.3 and using postgres 9.1.3 in runnin

Answer 1

The problem is you haven't synced your DB, I guess. Please execute these commands:

1. python manage.py makemigrations myappname
2. python manage.py migrate myappname

Answer 2

The reason is most likely that the

relation "password_user_answered_questions_id_s" does not exist

Just like the error message informs us. Are you aware of how PostgreSQL handles identifiers?

Also, sequences are usually named *_seq. Letters missing from the end?

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About maximum length of identifiers - I quote the manual from the link above:

The system uses no more than NAMEDATALEN-1 bytes of an identifier; longer names can be written in commands, but they will be truncated. By default, NAMEDATALEN is 64 so the maximum identifier length is 63 bytes. If this limit is problematic, it can be raised by changing the NAMEDATALEN constant in src/include/pg_config_manual.h.

Bold emphasis mine. Seems like you should shorten your identifiers a bit.