| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: V3 protocol is slower than V2 |
| Date: | 2007-10-16 04:45:37 |
| Message-ID: | 3942.1192509937@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-patches |
ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp> writes:
> [V2] PQsendQuery (V2; original)
> [V3] PQsendQueryParams (V3)
> [V3P] PQsendQueryPrepared (V3 with prepared statements)
> V3 was 12% slower than V2, and V3P was 40% faster than V2.
Those aren't really comparable, because the functionality is different.
Did you check plain PQSendQuery on both V2 and V3?
regards, tom lane
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