On Tue, Sep 24, 2024 at 10:28 AM Tom Lane <t...@sss.pgh.pa.us> wrote:
> It's even looser than that, really: it's the first statement that > requires an MVCC snapshot. Hm....so why does "SELECT 1;" work as a transaction start marker then, as opposed to "SHOW work_mem;", which does not? Do we simply consider anything with a SELECT as needing a snapshot? Cheers, Greg