Improve the accuracy of floating point statistical aggregates

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Title Improve the accuracy of floating point statistical aggregates
Topic Server Features
Created 2018-08-28 18:50:20
Last modified 2018-08-28 18:50:59 (3 weeks, 5 days ago)
Latest email 2018-08-28 19:05:13 (3 weeks, 5 days ago)
Status
2018-09: Needs review
Authors Dean Rasheed (deanr)
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BUG #15307: Low numerical precision of (Co-) Variance
First at 2018-08-01 13:35:13 by PG Bug reporting form <noreply at postgresql.org>
Latest at 2018-08-28 19:05:13 by Dean Rasheed <dean.a.rasheed at gmail.com>
Latest attachment (implement-float-aggs-using-youngs-cramer-v2.patch) at 2018-08-28 19:05:13 from Dean Rasheed <dean.a.rasheed at gmail.com>
    Attachment (implement-float-aggs-using-youngs-cramer-v2.patch) at 2018-08-28 19:05:13 from Dean Rasheed <dean.a.rasheed at gmail.com> (Patch: Yes)
    Attachment (implement-float-aggs-using-welford.patch) at 2018-08-09 11:02:06 from Dean Rasheed <dean.a.rasheed at gmail.com> (Patch: Yes)
History
When Who What
2018-08-28 18:50:59 Dean Rasheed (deanr) Changed authors to Dean Rasheed (deanr)
2018-08-28 18:50:20 Dean Rasheed (deanr) Attached mail thread 153313051300.1397.9594490737341194671@wrigleys.postgresql.org
2018-08-28 18:50:20 Dean Rasheed (deanr) Created patch record
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