Re: speed up verifying UTF-8

John Naylor <john.naylor@enterprisedb.com>

From: John Naylor <john.naylor@enterprisedb.com>

To: Vladimir Sitnikov <sitnikov.vladimir@gmail.com>

Cc: Amit Khandekar <amitdkhan.pg@gmail.com>, Heikki Linnakangas <hlinnaka@iki.fi>, pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2021-07-16T10:02:49Z

Lists: pgsql-hackers

On Fri, Jul 16, 2021 at 1:44 AM Vladimir Sitnikov <
sitnikov.vladimir@gmail.com> wrote:
>
> Have you considered shift-based DFA for a portable implementation
https://gist.github.com/pervognsen/218ea17743e1442e59bb60d29b1aa725 ?

I did consider some kind of DFA a while back and it was too slow.

--
John Naylor
EDB: http://www.enterprisedb.com

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Simplify coding style of is_valid_ascii()
- 6b41a1579bd3 16.0 landed
Apply auto-vectorization to the inner loop of numeric multiplication.
- 88709176236c 14.0 cited