2017-03-22 22:48 GMT+05:00 Teodor Sigaev <teo...@sigaev.ru>: > hasEmptyChild? and hasNonEmptyChild (BTW, isAnyNonempy has missed 't')
Yes, I think this naming is good. It's clear what's in common in these flags and what's different. > And if the whole posting tree is empty,then we could mark root page as leaf > and remove all other pages in tree without any locking. Although, it could > be a task for separate patch. >From the performance point of view, this is a very good idea. Both, performance of VACUUM and performance of Scans. But doing so we risk to leave some garbage pages in case of a crash. And I do not see how to avoid these without unlinking pages one by one. I agree, that leaving this trick for a separate patch is quite reasonable. Best regards, Andrey Borodin. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
