On Mon, Oct 27, 2014 at 5:52 PM, Heikki Linnakangas
<heikki(dot)linnakangas(at)iki(dot)fi> wrote:
> Fix two bugs in tsquery @> operator.
>
> 1. The comparison for matching terms used only the CRC to decide if there's
> a match. Two different terms with the same CRC gave a match.
>
> 2. It assumed that if the second operand has more terms than the first, it's
> never a match. That assumption is bogus, because there can be duplicate
> terms in either operand.
>
> Rewrite the implementation in a way that doesn't have those bugs.
>
> Backpatch to all supported versions.
Perhaps the CRC implementation would change in the future, but what
about adding regression tests as well? Those are still bugs.
--
Michael