article_729 has about 0.8 million rows. The rows of the children tables are variance from several thousands to dozens of millions. How can it help to create index on the partition key?
yes i'm very sure. from what i observed, it has something to do with the concurrent query planing. if i disconnect other connections, the plan is very quick.
Used partition schema looks very simple and straightforward, and should have no issues with 80 partitions. Are you sure that you have only 80 partitions but not (lets say) 800?
Are every other partition of the article table use the same general idea of partition check (cid=something)?
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