Dorian Hoxha wrote > Hi, > > So i have (table where data will be read) : > CREATE TABLE data (vid,cid,pid,number); > > Tables where data will be writen/updated: > > CREATE TABLE pid_top_vids (pid, vid[]) > CREATE TABLE pid_top_cids (pid, cid[]) > CREATE TABLE cid_top_vids (cid, vid[]) > > I need to , possibly in 1 query, this will run once in a while: > Get top(10) vids , sorted by 'number',grouped by pid and update the row in > TABLE(pid_top_vids). > > Get top(10) vids, sorted by 'number', grouped by cid and update the row in > TABLE(cid_top_vids). > > Get top(10) cids, sorted by 'number', where number is the SUM() of each > vid > GROUP_BY(cid) and update the row in TABLE (cid_top_vids); > > So, get data, create sorted array, and update the rows (they exist, so > only > the arrays have to be updated). > > Possible ? > Thanks I would not bother trying to do it in a single SQL statement but each query is possible, and fairly basic, using UPDATE with a FROM clause containing the desired sub-query. David J. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Complex-sql-limit-for-each-group-by-arrays-updates-tp5780554p5780599.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
