Horton

Re: Support loser tree for k-way merge

cca5507 <cca5507@qq.com>

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From: cca5507 <cca5507@qq.com>
To: Heikki Linnakangas <hlinnaka@iki.fi>, pgsql-hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-12-03T13:18:57Z
Lists: pgsql-hackers 
> So on specific data, the heap may be better than the loser tree. But I think the possibility
> is very small.

For example, a column contains all the same values, so the heap can always early return
when replacing top.

--
Regards,
ChangAo Chen