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Re: HOT for PostgreSQL 8.3 - Mailing list pgsql-hackers

From Tom Lane
Subject Re: HOT for PostgreSQL 8.3
Date
Msg-id 22871.1171259286@sss.pgh.pa.us
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In response to Re: HOT for PostgreSQL 8.3  (Hannu Krosing <hannu@skype.net>)
Responses Re: HOT for PostgreSQL 8.3  (mark@mark.mielke.cc)
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Hannu Krosing <hannu@skype.net> writes:
> How about adding a new 2-byte field to header for in-page c_tid poiner
> for HOT ?

We just finished sweating blood to get the tuple header size down to 23
bytes from 27 (which saves 8 bytes not 4 if MAXALIGN=8).  We are not
going to blow that again on HOT.
        regards, tom lane

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