pub fn retryable_conflict_code(
err: &(dyn Error + 'static),
) -> Option<&'static str>Expand description
The Postgres sqlstate of a failure that says nothing about the statement
that hit it, or None.
Walks the whole source chain, so a
sqlx::Error wrapped several layers deep in a caller’s own error type is
still recognised.
40P01— deadlock detected. This transaction was chosen as the victim; another one made progress.40001— serialization failure.
Both are properties of the contention, not of the items being probed, so a bisect re-probes the same range unsplit.