On Wed, 2025-03-05 at 10:12 +0330, me nefcanto wrote: > Adrian Klaver, thank you for the link. I asked the AI to create a query for me using FDW. > > The problem here is that it collects all of the product_id values from the ItemCategories table [...] > > That's not scalable. Is there a workaround for this? Without having scrutinized the case in detail: if your data are organized in an entity-attribute-value design and distributed across three databases, you cannot expect to end up with efficient queries. Perhaps you can extract the data and load them into a reasonably organized single database. Such an ETL process might make the task much easier. Yours, Laurenz Albe
