From: pgsql-hackers-ow...@postgresql.org > [mailto:pgsql-hackers-ow...@postgresql.org] On Behalf Of Amit Kapila > It looks like the code in 9.3 or later version uses the recptr as the target > segment location > (targetSegmentPtr) whereas 9.2 uses recptr as beginning of segment (readOff > = 0;). If above understanding is right then it will set different values > for latestPagePtr in 9.2 and 9.3 onwards code. >
In 9.2, the relevant variable is not recptr but recaddr. recaddr in 9.2 and recptr in later releases point to the beginning of a page just read, which is not always the beginning of the segment (targetSegmentPtr). Regards Takayuki Tsunakawa -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
