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optimize hashjoin
From:
"bucoo" <bucoo(at)sohu(dot)com>
To:
"'pgsql-hackers'" <pgsql-hackers(at)postgresql(dot)org>
Cc:
"'Tom Lane'" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "'Robert Haas'" <robertmhaas(at)gmail(dot)com>
Subject:
optimize hashjoin
Date:
2024-08-21 01:49:37
Message-ID:
007601daf36c$62739350$275ab9f0$@sohu.com
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2024-08-21 01:49:37 from "bucoo" <bucoo(at)sohu(dot)com> 📎
2024-08-21 16:31:49 from Tomas Vondra <tomas(at)vondra(dot)me> 📎
2024-08-21 17:17:47 from Robert Haas <robertmhaas(at)gmail(dot)com>
2024-08-21 19:51:38 from Tomas Vondra <tomas(at)vondra(dot)me> 📎
Lists:
pgsql-hackers
Avoid unnecessary form and deform tuple.
In the TPCH test, HashJoin speed up to ~2x.
Attachment
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optimize-hashjoin.patch
text/plain
9.3 KB
Responses
Re: optimize hashjoin
at 2024-08-21 16:31:49 from Tomas Vondra
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