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Another go at #12341. LKB-2497 We now only need 1 connect mechanism (and 1 more for testing) which saves us some code and complexity. We should be able to remove the final connect mechanism when we create a separate worker task for pglb->compute connections - either via QUIC streams or via in-memory channels. This also now ensures that connect_once always returns a ConnectionError type - something simple enough we can probably define a serialisation for in pglb. * I've abstracted connect_to_compute to always use TcpMechanism and the ProxyConfig. * I've abstracted connect_to_compute_and_auth to perform authentication, managing any retries for stale computes * I had to introduce a separate `managed` function for taking ownership of the compute connection into the Client/Connection pair
This directory contains libraries that are specific for proxy.
Currently, it contains a signficant fork/refactoring of rust-postgres that no longer reflects the API of the original library. Since it was so significant, it made sense to upgrade it to it's own set of libraries.
Proxy needs unique access to the protocol, which explains why such heavy modifications were necessary.