On Fri, Oct 26, 2018 at 9:17 PM Alexandre Assouad <alexandre.assouad@xxxxxxxxx> wrote: > I’ll try next week to build a test environment and I’ll send you the results. > Does it make any difference to set up a VM vs a dedicated machine ? Thanks. Probably not, the important thing is probably the same data, settings (work_mem etc) and query. Maybe start with a build of REL_10_5 and try to reproduce the problem, and if you can get that to happen reliably, then switch to a build of REL_10_STABLE to confirm that the problem goes away? -- Thomas Munro http://www.enterprisedb.com