Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)com> writes:
> +select '' ~ '(())(\2){0}';
> +server closed the connection unexpectedly
> Any ideas?
Huh. This seems like some deficiency in the part of parseqatom
starting with
/* annoying special case: {0} or {0,0} cancels everything */
if (m == 0 && n == 0)
but I don't immediately see what's different about your failing case
versus the not-failing ones.
regards, tom lane