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Re: Support loser tree for k-way merge - Mailing list pgsql-hackers

From cca5507
Subject Re: Support loser tree for k-way merge
Date
Msg-id tencent_E80D0FFA80C2AE21D4ABB0A7163EC54B0605@qq.com
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In response to Re: Support loser tree for k-way merge  ("cca5507" <cca5507@qq.com>)
Responses Re: Support loser tree for k-way merge
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> 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

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