Statistics fixes and improvements in face of high fraction of NULLs and/or skewed distribution

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ID 503
Title Statistics fixes and improvements in face of high fraction of NULLs and/or skewed distribution
CI (CFBot) Not processed
Stats (from CFBot) Unknown
Topic Miscellaneous
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Created 2016-02-08 14:04:29
Last modified 2016-04-08 06:41:27 (9 years ago)
Latest email 2016-04-05 05:58:42 (9 years ago)
Status
2016-03 (2016-03-01 – 2016-03-31): Returned with feedback
Target version
Authors Alex Shulgin (ash), Tomas Vondra (fuzzycz)
Reviewers Tom Lane (tgl)Become reviewer
Committer Tom Lane (tgl)
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More stable query plans via more predictable column statistics
First at 2015-12-01 15:21:13 by "Shulgin, Oleksandr" <oleksandr.shulgin at zalando.de>
Latest at 2016-04-05 05:58:42 by "Shulgin, Oleksandr" <oleksandr.shulgin at zalando.de>
Latest attachment (better-MCV-cutoff-1.patch) at 2016-04-02 16:37:53 from Tom Lane <tgl at sss.pgh.pa.us>
    Attachment (better-MCV-cutoff-1.patch) at 2016-04-02 16:37:53 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (0001-Account-for-NULLs-in-ANALYZE-more-strictly.patch) at 2016-03-02 17:56:50 from "Shulgin, Oleksandr" <oleksandr.shulgin at zalando.de> (Patch: Yes)
    Attachment (analyze-better-histogram-v2.patch) at 2016-02-08 14:01:00 from "Shulgin, Oleksandr" <oleksandr.shulgin at zalando.de> (Patch: Yes)
    Attachment (ndistinct-nulls-fix.patch) at 2016-01-23 10:22:08 from Tomas Vondra <tomas.vondra at 2ndquadrant.com> (Patch: Yes)
    Attachment (analyze-better-histogram.patch) at 2015-12-01 15:21:13 from "Shulgin, Oleksandr" <oleksandr.shulgin at zalando.de> (Patch: Yes)
History
When Who What
2016-04-08 06:41:27 Robert Haas (rhaas) Closed in commitfest 2016-03 with status: Returned with feedback
2016-04-04 22:28:15 Tom Lane (tgl) New status: Waiting on Author
2016-04-02 04:04:17 Tom Lane (tgl) Added tgl as committer
2016-04-01 17:01:20 Tom Lane (tgl) Added tgl as reviewer
2016-03-18 15:04:39 Tom Lane (tgl) Removed tgl from reviewers
2016-03-08 21:37:04 Tom Lane (tgl) Added tgl as reviewer
2016-02-08 14:04:51 Alex Shulgin (ash) Changed authors to Tomas Vondra (fuzzycz), Alex Shulgin (ash)
2016-02-08 14:04:29 Alex Shulgin (ash) Attached mail thread CACACo5RFCsMDZrsxwzZ0HsCBY51EttXB=HwZhfp+X7EGRgeSSQ@mail.gmail.com
2016-02-08 14:04:29 Alex Shulgin (ash) Created patch record
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