On 4 August 2016 at 02:13, Bruce Momjian <bruce@momjian.us> wrote:
> How do plan to clear the bitmask so it, over time, doesn't end up being
> all-set?
I don't have a plan, though thoughts welcome.
Similar situation that our current indexes don't recover from bloat, a
situation made worse by non-HOT updates.
So, we have a choice of which disadvantage to accept.
> Also, why not use this bitmap for all indexes, not just update chains?
I don't understand where you get this update chains thing from.
The bitmap can apply to multiple tuples on one page, which is described.
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