| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
| Cc: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Parallel Append subplan order instability on aye-aye |
| Date: | 2019-05-21 14:39:12 |
| Message-ID: | 3341.1558449552@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> writes:
> I did add the following query just before the failing one and included
> the expected output from below. The tests pass for me in make check
> and the post-upgrade test passes in make check-world too. I guess we
> could commit that and see if it fails along with the other mentioned
> failure.
I'm thinking this is a good idea, although I think we could be more
aggressive about the data collected, as attached. Since all of these
ought to be single-page tables, the relpages and reltuples counts
should be machine-independent. In theory anyway.
regards, tom lane
| Attachment | Content-Type | Size |
|---|---|---|
| investigate-a_star-failures.patch | text/x-diff | 2.5 KB |
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