Hello please do not consider this email as an yet another question how to speed up writing. The situation is different: My algorithm stores after the computation the result as tuples in a DB. The tuples in addition to normal values (e.g. a,b) , contains sql statements that fetch values (for instance the geometry attribute) from another table (e.g. orig_table). e.g. INSERT INTO dest_table ( Select a,b, s.geometry,s.length from orig_table s where s.id=? ) The number of inserts depends on the size of the result and vary from 10,000 to 1,000,000. My question is: how can I speed up such inserts? Only COPY statements want work, since I need additional values Insert statements takes long time (even if using Bulk) What do you suggest me in such a situation? Would it be better to perform? - first use COPY to store values in new table - second update the new table with values from origin table thanks for your hints / suggestions cheers Markus -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
