Re: visibility maps - Mailing list pgsql-hackers

From Pavan Deolasee
Subject Re: visibility maps
Date
Msg-id 2e78013d0812042325y72ac4f0eg27718a0b673c8ef4@mail.gmail.com
Whole thread Raw
In response to visibility maps  ("Pavan Deolasee" <pavan.deolasee@gmail.com>)
Responses Re: visibility maps  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
List pgsql-hackers
<br />/*<br /> * Size of the bitmap on each visibility map page, in bytes. There's no<br /> * extra headers, so the
wholepage minus except for the standard page header<br /> * is used for the bitmap.<br /> */<br />#define MAPSIZE
(BLCKSZ- SizeOfPageHeaderData)<br /><br /><br />ISTM that we should MAXALIGN the SizeOfPageHeaderData to compute
MAPSIZE.PageGetContents() works that way and I believe that's the right thing to do.<br /><br />Thanks,<br />Pavan<br
clear="all"/><br />-- <br />Pavan Deolasee<br /> EnterpriseDB     <a
href="http://www.enterprisedb.com">http://www.enterprisedb.com</a><br/> 

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