Steven Thomson

@oshai I have created my initial attempt with some tests created to check the new behaviour. I'll continue to work on tests to make sure I don't break anything. This...

For either copy operation the concurrent queries check could help, however, issuing a copy query to the server has a different flow than regular queries. For CopyOut it goes: 1....

@nk9 I think you meant to reference [here](https://github.com/launchbadge/sqlx/blob/c82bf43e98cb1c35bcce21d11f553c7c7559ab29/sqlx-postgres/src/connection/executor.rs#L163) because that's where the postgres driver does a similar action as to what you linked in the MySQL driver

From what I can see, this looks like an issue that wouldn't be a straight forward fix since the current parameter type checking is done against a static list of...

@KairuDeibisu You're problem is 2 fold: 1. The query macros can not understand composite types because otherwise you query would be fine to parse out. 2. The query macros do...