Attached is a v10 rebase of this patch which had undergone significant bitrot due to recent changes in the pg_upgrade check phase. This brings in the changes into the proposed structure without changes to queries, with no additional changes to the proposed functionality.
Testing with a completely empty v11 cluster fresh from initdb as the old cluster shows a significant speedup (averaged over multiple runs, adjusted for outliers): patched: 53.59ms (52.78ms, 52.49ms, 55.49ms) master : 125.87ms (125.23 ms, 125.67ms, 126.67ms) Using a similarly empty cluster from master as the old cluster shows a smaller speedup, which is expected since many checks only run for older versions: patched: 33.36ms (32.82ms, 33.78ms, 33.47ms) master : 44.87ms (44.73ms, 44.90ms 44.99ms) The latter case is still pretty interesting IMO since it can speed up testing where every millisecond gained matters. -- Daniel Gustafsson
v10-0001-pg_upgrade-run-all-data-type-checks-per-connecti.patch
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