Hi! > 19 июля 2018 г., в 23:26, Andrey Borodin <x4...@yandex-team.ru> написал(а): > > I'm working on triggering left split during vacuum. Will get back when done. > Thanks!
Here's patch including some messy hacks to trigger NSN and FollowRight jumps during VACUUM. To trigger FollowRight GiST sometimes forget to clear follow-right marker simulating crash of an insert. This fills logs with "fixing incomplete split" messages. Search for "REMOVE THIS" to disable these ill-behavior triggers. To trigger NSN jump GiST allocate empty page after every real allocation. gistvacuumcleanup() was constantly generating left jumps because there was used 0 instead of real start NSN, I moved NSN acquisition to gistvacuumscan(). Also fixed some comments. gistvacuumcleanup() will have same effect as gistbulkdelete(), is it OK? To reproduce left-jumps run ./rescantest.sh Script contain variables for my local paths. Best regards, Andrey Borodin.
0001-Physical-GiST-scan-in-VACUUM-v13.patch
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