Re: [HACKERS] Surjective functional indexes

Konstantin Knizhnik wrote:

> rd_projidx is not a list, it is Bitmapset. It is just one of many bitmap
> sets in RelationData:

Yes, but the other bitmapsets are of AttrNumber of the involved column.
They new one is of list_nth() counters for items in the index list.
That seems weird and it scares me -- do we use that coding pattern
elsewhere?  Maybe use an array of OIDs instead?

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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