| From: | Emre Hasegeli <emre(at)hasegeli(dot)com> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: [PATCH] Improve geometric types |
| Date: | 2018-07-30 09:57:38 |
| Message-ID: | CAE2gYzxgMr8=rMqpm1srd1id6PcSpuD=LinD5aVmoY7XejKaGw@mail.gmail.com |
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| Lists: | pgsql-hackers |
> OK, thanks for confirming. I'll get it committed and we'll see what the
> animals think soon.
Thank you for fixing this. I wanted to preserve this code but wasn't
sure about the correct place or whether it is still necessary.
There are more places we produce -0. The regression tests have
alternative results to cover them. I have the "float-zero" patch for
this. Although I am not sure if it is a correct fix. I think we
should find the correct fix, and apply it globally to floating point
operations. This can be only enabled for platforms which produce -0,
so the others don't have to pay the price.
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