| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp> |
| Cc: | pgsql-patches(at)postgresql(dot)org |
| Subject: | Re: Miscalculation in IsCheckpointOnSchedule() |
| Date: | 2007-11-14 21:15:33 |
| Message-ID: | 15711.1195074933@sss.pgh.pa.us |
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| Lists: | pgsql-patches |
ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp> writes:
> Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Surely this makes matters worse, not better. What happens near a segment
>> boundary crossing?
> Here is the dumped progres information by the attached patch
> (only for debug purpose).
Oh, I take that back. I was thinking that conversion of unsigned to
double usually does the Wrong Thing, but in this context it seems to be
the right thing.
regards, tom lane
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