Support for the PG wire protocol

[mamcx]

Description of Changes

Closes #2686.

Add support for listening using the PG wire protocol so pg clients could be used against the database.

API and ABI breaking changes

The output of duration is changed to rfc3339, instead of the way is made with sats because is what is done in pg, see note below.

Expected complexity level and risk

2

There is open questions that are in the ticket #2686. Also the crate used here require RustTls, so it could be good idea to decide if:

• Rewrite a big chunk of code to use OpenSSL
• Move to RustTls Remove openssl #1700
• Pay for the extra compilation cost.

I open another port(5433) to listen for pg connections using ssl. Need to be decided if this is the way or instead try to multi-plex the current port for both protocols.

Testing

Only manual testing so far. Solving the above questions allow me to implement some unit tests. Also, not yet integrated into cloud for the same reasons.

• Adding some test for the binary encoding of special and primitive types
• Smoke test using psql that connect to the db instance and run some queries
• Manually inspect using a UI database explorer how infer the types, some of this tools generate special widgets when displaying json, duration, etc

[bfops]

(It looks like this is currently failing tests)

[mamcx]

(It looks like this is currently failing tests)

Yes, the unit test was a spurious network error, the others are problems with the smoke tests that need psql binary to be present. Working on it...

[sunng87]

@mamcx Hello Mario, this is author of pgwire. Let me know if you have any question with the integration. It's also helpful for me to know if you feel any component that can be or should be upstreamed.

[bfops]

codeowned changes for me LGTM (crates/cli/src/subcommands/sql.rs)

[cloutiertyler]

For the two files that I own this looks good to me. I take it we are supporting postgres formatted output and also SpacetimeDB for spacetime sql?

[mamcx]

For the two files that I own this looks good to me. I take it we are supporting postgres formatted output and also SpacetimeDB for spacetime sql?

Correct.