Gregory Stark <stark@enterprisedb.com> writes:
> Further poking around shows that the "unrecognized locktag" is because
> lmgr.c:DescribeLockTag was never taught about virtual xids.
That's fixed, thanks for the patch.
> The pid it's waiting on is long since gone but looks like it was probably an
> autovacuum process. I have a vague recollection that you had rigged CREATE
> INDEX CONCURRENTLY to ignore vacuum processes when checking for conflicting
> processes.
I'm still not too clear on the underlying bug though.
regards, tom lane
