feature: allow changing of "public" schema with env variable

While trying to add Hasura onto an existing DB, I recently found that all tables within any schema other than public are prefixed with that schema’s name. e.g. hasura_users

I think it’d be really helpful for adding Hasura to an existing DB if an environment variable could be set that would replace the default public schema as the unprefixed queries. e.g. HASURA_DEFAULT_SCHEMA=hasura which would then unprefix any tables in the hasura schema - making the above just users.

[xiaoyu-tamu]

Any updates?

[jozef-slezak]

@rakeshkky, it would really help to have HASURA_DEFAULT_SCHEMA=public. I believe it should be easy to implement. What is the chance of merging a pull request in case of contribution?