Extension traits are now being used for PgConnection, PgPoolConnection &
PgPool for listen/notify functionality. Only two extension traits were
introduced.
Only a single trait method is present on the extension traits and it
works for single or multi channel listening setups.
Automatic reconnect behavior is implemented for PgPool based listeners.
All logic has been cut over to the `recv` impls for the PgListener
variants.
Use async-stream for a nice Stream interface.
This changeset introduces an interface for using PostgreSQL's LISTEN
functionality from within sqlx.
The listen interface is implemented over the PgConnection, PgPool & the
PgPoolConnection types for ease of use. In the case of PgPool, a new
connection is acquired, and is then used for LISTEN functionality.
Closes#87
implement nullability check for Postgres as a query on pg_attribute
implement type name fetching for Postgres as part of `describe()`
add nullability for describe() to MySQL
improve errors with unknown result column type IDs in `query!()`
run cargo fmt and fix warnings
improve error when feature gates for chrono/uuid types is not turned on
workflows/rust: add step to UI-test missing optional features
improve error for unsupported/feature-gated input parameter types
fix `PgConnection::get_type_names()` for empty type IDs list
fix `tests::mysql::test_describe()` on MariaDB 10.4
copy-edit unsupported/feature-gated type errors in `query!()`
Postgres: fix SQL type of string array
closes#107closes#17
Co-Authored-By: Anthony Dodd <Dodd.AnthonyJosiah@gmail.com>
* Allow `conn.fetch(" ... ")` to be called where `conn` is an owned Connection
* Executor::fetch -> RefExecutor::fetch_by_ref
* Executor::fetch_by_ref -> Executor::fetch
* Move `Connection::describe` to `Executor::describe`
* `Transaction` is no longer a `Connection`
* `Connection` has `Executor` as a super-trait again which greatly simplifies bounds
