number of attributes in page files? - Mailing list pgsql-hackers

From Mario Weilguni
Subject number of attributes in page files?
Date
Msg-id 200210110914.50377.mweilguni@sime.com
Whole thread Raw
Responses Re: number of attributes in page files?  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
Is it possible to get rid of the "t_natts" fields in the tuple header? Is this field only for "alter table add/drop"
support?Then it might 
possible to get rid of it and put the "t_natts" field in the page header, not the tuple header, if it can be assured
thatwhen updating/inserting 
records only a compatible (a page file with the same number of attributes) page file is used. Especially master-detail
tableswould  
profit from this, reducing the tuple overhead by another 9%.

Might this be possible?

Regards,
    Mario Weilguni




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