Re: pgsql: Make heap TID a tiebreaker nbtree index column.

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От Peter Geoghegan
Тема Re: pgsql: Make heap TID a tiebreaker nbtree index column.
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Msg-id CAH2-WzmfxXs3bSX6T3DP1wTEWbyhkTiyPZ6o9t2DmcHbBtsCNA@mail.gmail.com
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Ответ на Re: pgsql: Make heap TID a tiebreaker nbtree index column.  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: pgsql: Make heap TID a tiebreaker nbtree index column.  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Wed, Mar 20, 2019 at 2:44 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> After trying it (against yesterday's sources) on my SELinux-capable
> machine, I see no evidence that we need any output ordering changes
> at all if we go this route.  This is probably unsurprising considering
> that the old btree code used to provide mostly-reverse-insertion-order
> scan order.

That's good. I'm trying to fix it by hand right now, in the way that
Andres suggested. It is both tedious and error-prone.

-- 
Peter Geoghegan


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