> means that there's no way to parallelize CSV processing, because there's no way to read-ahead and "chunk" a CSV purely lexically. There's a subset of CSV th

> means that there's no way to parallelize CSV processing, because there's no way to read-ahead and "chunk" a CSV purely lexically. There's a subset of CSV that forbids escapes that is super fast to parse. All fast CSV parsers I'm aware of take advantage of this subset. I try to never ever publish a CSV that has quotes, and always aim for a more restrictive grammar that is cleaner, better thought out data.