On Wed, Jul 21, 2021 at 10:54 PM Alin Mr <almr....@outlook.com> wrote:
>
> Ron, thanks for your quick patch and the hints. I saw your message and was
> thinking through; fixed-length patterns don't need backtracking. '?'
> (without '*') also results in fixed-length patterns, so maybe that'd be more
> complicated to detect.
>
> To motivate this a bit: it started with quoters. Since we have neither bash's
> ${x@Q}, nor `printf %q`, it's harder to escape shell code for eval, or to
> produce quoted SQL values **efficiently**.
A patch to implement e.g. ${x@Q} is acceptable.
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