Robert Haas <robertmh...@gmail.com> writes:
> On Sun, May 18, 2025 at 7:31 PM Tom Lane <t...@sss.pgh.pa.us> wrote:
>> While chasing down Valgrind leakage reports, I was disturbed
>> to realize that some of them arise from a case where the
>> executor scribbles on the plan tree it's given, which it is
>> absolutely not supposed to do:
> Is there some way that we can detect violations of this rule
> automatically? I recall that we were recently discussing with Richard
> Guo a proposed patch that would have had a similar problem, so it's
> evidently not that hard for a committer to either fail to understand
> what the rule is or fail to realize that they are violating it.
I proposed a possible way to test for this at [1]. I was intending to
get around to that sooner or later, but the urgency of the matter just
went up in my eyes...
regards, tom lane
[1]
https://www.postgresql.org/message-id/flat/2531459.1743871597%40sss.pgh.pa.us
