Function pg_error_detail

nodedb-test-support/src/pgwire_harness/query.rs:188–199

Extract a detailed error message from a tokio-postgres error. tokio-postgres `Error::to_string()` just returns "db error" — useless for debugging. This pulls the actual server message out of the `DbError` when available.

(e: &tokio_postgres::Error)

/// debugging. This pulls the actual server message out of the `DbError` when
/// available.
fn pg_error_detail(e: &tokio_postgres::Error) -> String {
    if let Some(db_err) = e.as_db_error() {
        format!(
            "{}: {} (SQLSTATE {})",
            db_err.severity(),
            db_err.message(),
            db_err.code().code()
        )
    } else {
        format!("{e:?}")
    }
}

/// Generate a short hex string suitable for unique test name suffixes.
fn uuid_v4_hex() -> String {