Re: Re: [COMMITTERS] pgsql: Augment WAL records for btree delete with GetOldestXmin() to

Simon Riggs <simon@2ndQuadrant.com> writes:
> At the moment a btree delete record will cancel every request
> 1. no matter how long they have been running
> 2. no matter if they haven't accessed the index being cleaned (they
> might later, is the thinking...)

That seems seriously horrid.  What is the rationale for #2 in
particular?  I would hope that at worst this would affect sessions
that are actively competing for the index being cleaned.
        regards, tom lane