On Sun, Feb 04, 2018 at 11:04:56AM -0500, Rick Otten wrote: > On Sun, Feb 4, 2018 at 10:35 AM, Tom Lane <tgl@xxxxxxxxxxxxx> wrote: > > > Rick Otten <rottenwindfish@xxxxxxxxx> writes: > > > I'm wrestling with a very similar problem too - except instead of > > official > > > partitions I have a views on top of a bunch (50+) of unioned materialized > > > views, each "partition" with 10M - 100M rows. On 9.6.6 the queries would > > > use the indexes on each materialized view. On 10.1, every materialized > > > view is sequence scanned. I think it'd be useful to see the plan from explain analyze, on both the "parent" view and a child, with and without SET enable_seqscan=off, Justin
