"Joel Jacobson" writes:
> On Mon, Mar 1, 2021, at 01:53, Tom Lane wrote:
>> 0001-fix-backref-semantics.patch
>> 0002-backref-performance-hack.patch
> I've successfully tested both patches.
Again, thanks for testing!
> On HEAD the trouble-query took forever, I cancelled it after 23 minutes.
Yea
On Mon, Mar 1, 2021, at 01:53, Tom Lane wrote:
>0001-fix-backref-semantics.patch
>0002-backref-performance-hack.patch
I've successfully tested both patches.
On HEAD the trouble-query took forever, I cancelled it after 23 minutes.
HEAD (f5a5773a9dc4185414fe538525e20d8512c2ba35):
SELECT regexp_mat
I noticed that some of the slowest cases in Joel's regex test corpus
had issues with back-reference matching, and along the way to fixing
that discovered what seems to me to be a bug in the engine's handling
of back-references. To wit, what should happen if a back-reference
is to a subexpression t
