The patch really improves access performance to jsonb. On the delicious bookmarks I got 5 times better performance.Now jsonb outperforms json on simple access (slide 12 of pgcon presentation) by 103 times !
Oleg On Fri, May 30, 2014 at 9:35 AM, Teodor Sigaev <teo...@sigaev.ru> wrote: > Hi! > > jsonb operators ->text, ->>text,->int, ->>int use inefficient methods to > access to needed field, proportional O(N/2). Attached patch suggests for > text operators O(log(N)) and for integer - O(1). The fuctions with fast > access already are existed in current code and are used in contains > operation, for example. Attached patch uses that functions instead of > sequentual loop over object/array. > -- > Teodor Sigaev E-mail: teo...@sigaev.ru > WWW: > http://www.sigaev.ru/ > > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers > -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
