Hi, On 2022-11-28 16:04:12 -0500, Tom Lane wrote: > Andres Freund <and...@anarazel.de> writes: > > - to > > combat the space usage we likely should switch to representing the ids as > > variable width integers or such, otherwise the space increase would likely > > be > > prohibitive. > > And I don't buy that either. An extra 4 bytes with a 2K payload is not > "prohibitive", it's more like "down in the noise".
The space usage for the the the toast relation + index itself is indeed irrelevant. Where it's not "down in the noise" is in struct varatt_external, i.e. references to external toast datums. The size of that already is an issue. Greetings, Andres Freund
