Unable to Connect to StarRocks in Version 0.8.5 (Works Fine in 0.8.3)

[scottxing]

I have found these related issues/pull requests

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Description

Could you investigate whether there were any changes in the MySQL driver or connection handling logic between versions 0.8.3 and 0.8.5 that might cause this issue? Alternatively, if this is a known issue, guidance on how to resolve it would be appreciated.

Thank you for your time and support!

Reproduction steps

Steps to Reproduce:
1.Use the following connection string or configuration to connect to StarRocks:

let options = MySqlConnectOptions::new()
.host(conf.get("host").unwrap())
.port(conf.get("port").unwrap().parse()?)
.username(conf.get("username").unwrap())
.password(conf.get("password").unwrap())
.timezone(String::from("+08:00"))
.no_engine_substitution(false)
.pipes_as_concat(false);

2.Run the code with sqlx version 0.8.5.
3.Observe that the connection fails.
4.Downgrade to sqlx version 0.8.3 and run the same code.
5.Observe that the connection succeeds.

SQLx version

0.8.5

Enabled SQLx features

"chrono", "mysql", "runtime-tokio", "bigdecimal"

Database server and version

StarRocks3.3.9

Operating system

CentOS7.9

Rust version

rustc 1.85.1 (4eb161250 2025-03-15)

[abonander]

It would be helpful if you provided the actual error message.

The only significant change to the internals of the MySQL driver since 0.8.3 would be #3812