rename schema from environment variable

[stmtk1]

In this image, the environment variables POSTGRES_DB, POSTGRES_USER and POSTGRES_PASSWORD can be used to change the database name, user name and password name, but not the schema name. So we want to be able to change the schema name using the new environment variable POSTGRES_SCHEMA.

[tianon]

Does the default schema change anything about the way the initialization we perform works? (my gut reaction would be to suggest an early-initdb .sql file drop-in that does something like ALTER SCHEMA xxx RENAME TO yyy)