On Wed, Jul 10, 2019 at 12:51:28PM +0530, Amit Kapila wrote: > It would be good if we can come up with something like that. It will > be helpful for zheap, where in some cases we get different row > ordering due to in-place updates. As of now, we try to add Order By > or do some extra magic to get consistent row ordering.
That was an issue for me as well when working with Postgres-XC when the row ordering was not guaranteed depending on the number of nodes (speaking of which Greenplum has the same issues, no?). Adding ORDER BY clauses to a set of tests may make sense, but then this may impact the plans generated for some of them.. -- Michael
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