Issue type:

[ ] question
[ ] bug report
[ ] feature request
[x] documentation issue

Database system/driver:

[ ] cordova
[ ] mongodb
[ ] mssql
[ ] mysql / mariadb
[ ] oracle
[x] postgres
[ ] cockroachdb
[ ] sqlite
[ ] sqljs
[ ] react-native
[ ] expo

TypeORM version:

[x] latest
[ ] @next
[ ] 0.x.x (or put your version here)

What version of Go are you using (go version)?

1.12

Which database and its version are you using?

mysql 5.7

Please provide a complete runnable program to reproduce your issue. IMPORTANT

The documentation isn't to clear when it comes to querying by nested associations. For example, consider following structure.

// User has one Profile and belongs to many Instit

Describe the bug
When the elevated database user account does not have permission to create a schema, it cannot establish a connection with an existing database.

But when I provided the root account, I successfully established a connection with the database, but prisma created a schema called prisma.
Look like this:
![image](https://user-images.githubusercontent.com/18180417/57507662-fc

Is the README the only documentation available for this project? I find myself having to read the source to understand the interface and features that are available (e.g., context managers, bulk_query, etc.).

In the case of bulk_query, the arguments are simply passed through to the underlying SQLAlchemy engine, with no explanation. I tracked it down in [SQLAlchemy's documentation](https:/

Hello,
Actually I would like to increase a dependency version of url and dotenv crate only, as I have duplicates versions in my Cargo.lock. But I have collect also which other dependency could be increased:

diesel/diesel/Cargo.toml

[dependencies]
url = "2.1.0"
quickcheck = "0.9.0"
uuid = "0.8.1"
[dev-dependencies]
dotenv = "0.15.0"
quickcheck = "

what is prefer way to add relation and remove relation? I found example as below, but I did't find any document about the two methods.

 case 'ADD_AUTHOR_TO_BOOK':
        Book.withId(action.payload.bookId).authors.add(action.payload.author);  // add new entity ,  add relation?  this doesn't work.
        break;
    case 'REMOVE_AUTHOR_FROM_BOOK':
        Book.withId(action.payload.bo

It would be helpful to pull comments from tables and column, and if they are present, write them as comments in the generated go code. This will help with documentation and follow the design goal: the schema is the source of truth.

If this is interesting, I can help with the mysql implementation.

similar to how https://docs.rs/ndarray/0.12.1/ndarray/doc/index.html has a documentation module, I think this is a nice place to keep the docs in a more properly version-controlled place.

There is a bug in the PostgreSQL's template file postgres.type.go.tpl.
Since sqlstr does not specify any values to be returned, we should not call QueryRow or Scan on line 49 (otherwise, there will be an error). I think we should use Exec instead.

https://github.com/xo/xo/blob/61f41375ea6f0f04be136dc9dd21ddb89228ac46/templates/postgres.type.go.tpl#L39-L52