Improve planner cost estimations for alternative subplans

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Title Improve planner cost estimations for alternative subplans
Topic Performance
Created 2020-06-05 16:10:01
Last modified 2020-10-01 04:27:54 (3 weeks, 3 days ago)
Latest email 2020-08-28 22:38:36 (1 month, 3 weeks ago)
Status
2020-11: Needs review
2020-09: Moved to next CF
2020-07: Moved to next CF
Target version 14
Authors Alexey Bashtanov (bashtanov)
Reviewers Melanie Plageman (melanieplageman)Become reviewer
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Improve planner cost estimations for alternative subplans
First at 2020-06-05 16:08:02 by Alexey Bashtanov <bashtanov at imap.cc>
Latest at 2020-08-28 22:38:36 by Andy Fan <zhihui.fan1213 at gmail.com>
Latest attachment (v1-0001-Convert-the-AlternativeSubplan-to-Subplan-as-soon.patch) at 2020-08-17 14:12:39 from Andy Fan <zhihui.fan1213 at gmail.com>
    Attachment (v1-0001-Convert-the-AlternativeSubplan-to-Subplan-as-soon.patch) at 2020-08-17 14:12:39 from Andy Fan <zhihui.fan1213 at gmail.com> (Patch: Yes)
    Attachment (altplan-example.sql) at 2020-07-24 14:55:57 from Alexey Bashtanov <bashtanov at imap.cc> (Patch: No)
    Attachment (better-alternativesubplan-cost-ests-1.patch) at 2020-06-22 01:39:37 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (alternatives-cost-as-geom-mean-v2.patch) at 2020-06-05 16:08:02 from Alexey Bashtanov <bashtanov at imap.cc> (Patch: Yes)
History
When Who What
2020-10-01 04:27:54 Michael Paquier (michael-kun) Closed in commitfest 2020-09 with status: Moved to next CF
2020-08-03 09:05:54 Daniel Gustafsson (d_gustafsson) Closed in commitfest 2020-07 with status: Moved to next CF
2020-06-17 01:16:45 Melanie Plageman (melanieplageman) Added melanieplageman as reviewer
2020-06-05 16:10:25 Alexey Bashtanov (bashtanov) Changed authors to Alexey Bashtanov (bashtanov)
2020-06-05 16:10:25 Alexey Bashtanov (bashtanov) Changed targetversion to 14
2020-06-05 16:10:01 Alexey Bashtanov (bashtanov) Attached mail thread 07b3fa88-aa4e-2e13-423d-8389eb1712cf@imap.cc
2020-06-05 16:10:01 Alexey Bashtanov (bashtanov) Created patch record
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