…eaQL/sea-orm#1297, SeaQL/sea-orm#1434)

* Update 02-writing-migration.md

* Update SeaORM/docs/03-migration/02-writing-migration.md

* Support various UUID formats that are available in `uuid::fmt` module (SeaQL/sea-orm#1325)

* Casting columns as a different data type on select, insert and update (SeaQL/sea-orm#1304)

* Methods of `ActiveModelBehavior` receive db connection as a parameter (SeaQL/sea-orm#1145, SeaQL/sea-orm#1328)

* Added `execute_unprepared` method to `DatabaseConnection` and `DatabaseTransaction` (SeaQL/sea-orm#1327)

* Added `Select::into_tuple` to select rows as tuples (instead of defining a custom Model) (SeaQL/sea-orm#1311)

* Generate `#[serde(skip)]` for hidden columns (SeaQL/sea-orm#1171, SeaQL/sea-orm#1320)

* Generate entity with extra derives and attributes for model struct (SeaQL/sea-orm#1124, SeaQL/sea-orm#1321)

* Generate entity with extra derives and attributes for model struct (SeaQL/sea-orm#1124, SeaQL/sea-orm#1321)

* async_trait

* Migrations are now performed inside a transaction for Postgres (SeaQL/sea-orm#1379)

* `MockDatabase::append_exec_results()`, `MockDatabase::append_query_results()`, `MockDatabase::append_exec_errors()` and `MockDatabase::append_query_errors()` take any types implemented `IntoIterator` trait (SeaQL/sea-orm#1367)

* Cleanup the use of `vec!` macros

* Added `DatabaseConnection::close` (SeaQL/sea-orm#1236)

* Added `ActiveValue::reset` to convert `Unchanged` into `Set` (SeaQL/sea-orm#1177)

* Added `QueryTrait::apply_if` to optionally apply a filter (SeaQL/sea-orm#1415)

* Added the `sea-orm-internal` feature flag to expose some SQLx types (SeaQL/sea-orm#1297, SeaQL/sea-orm#1434)

* Add `QuerySelect::columns` method - select multiple columns (SeaQL/sea-orm#1264)

* Edit

* Update SeaORM/docs/02-install-and-config/02-connection.md

Co-authored-by: Chris Tsang <[email protected]>

* Update SeaORM/docs/05-basic-crud/03-insert.md

Co-authored-by: Chris Tsang <[email protected]>

* fmt

* Edit

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Co-authored-by: Chris Tsang <[email protected]>