Tomas Vondra <tomas.von...@2ndquadrant.com> writes: > Hmm, yeah. Based on past experience, the powerpc machines are likely to > stumble on this.
> FWIW my understanding is that these failures actually happen in new > tests, it's not an issue introduced by this patch series. Yeah, we've definitely hit such problems before. The geometric logic seems particularly prone to it because it's doing more and subtler float arithmetic than the rest of the system ... but it's not the sole source of minus-zero issues. regards, tom lane