On Sat Feb 6 01:20 AM, Tom Lane wrote: > "Jonathan Bond-Caron" <jbo...@gmail.com> writes: > > I think part of my problem is I haven't really understood what 'Then > > make sure you have the right alignment' means. > > > My approach currently is: > > > After reading HeapTupleHeaderData (23 bytes), I advance another 4 > > bytes > > (hoff) and try to read a 32 bit integer (first attribute). > > No. First you start at the tuple beginning plus the number of bytes > indicated by hoff (which should be at least 24).
Thanks, much appreciated! I was reading HeapTupleHeaderData as 23 bytes but it's 27 bytes in access/htup.h?rev=1.87. The hoff now makes sense with a 28 bytes value and I can start to read the user data. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
