On Fri, Nov 16, 2018 at 01:35:15PM -0500, Tom Lane wrote: > I wonder whether we'd be better off thinking of a way to let FDWs > invent additional system column IDs for their tables, so that > something like a remote table OID could be represented in the > natural way as a Var with negative varattno. This'd potentially > also be a win for FDWs whose underlying storage has a row identifier, > but it's not of type "tid". Instead of trying to shoehorn their > row ID into SelfItemPointerAttributeNumber, they could define a > new system column that has a more appropriate data type. Admittedly > there'd be some infrastructure work to do to make this happen, maybe > a lot of it; but it's a bullet we really need to bite at some point.
This patch got zero input for the last couple of months. As it is classified as bug fix, I have moved it to next CF, waiting on author. Fujita-san, are you planning to look at it? -- Michael
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