Postgres configuration specification is confusing

[v3g42]

https://github.com/getdozer/dozer/blob/main/dozer-types/src/models/connection.rs#L94 PostgresConfig seems to take each field optionally. It should rather be two variations. Either you specify a URL or all mandatory fields specified.

[chloeminkyung]

Expected flow:

1. when user specify PostgresConfig with connection_url we only takes details from the url only

  config: !Postgres
      connection_url: postgres://postgres:postgres@localhost:5432/dozer

• if the connection_url is provided with other mandatory fields manually, we give out error saying Either you specify connection URL or all mandatory fields.

  config: !Postgres
      connection_url: postgres://postgres:postgres@localhost:5432/dozer
      user: postgres

2. when user doesn't specify connection_url in PostgresConfig, we try taking details from other mandatory fields, if missing data, we give out error with Missing details for postgres connection config - <fields>

  config: !Postgres
      user: postgres
      password: postgres
      host: localhost
      port: 5432
      database: dozer
      name: user