Am 15. Juni 2017 16:53:44 MESZ schrieb "ldh@xxxxxxxxxxxxxxxxxx" <ldh@xxxxxxxxxxxxxxxxxx>: >Hello all, > >I have a query with many joins, something like: > >Select c1, c2, c3, sum(c5) > From V1 > Join V2 on ... > Left join V3 on ... > Left join T4 on ... > Join T5 on ... > Join T6 on ... > Left join T7 on ... > Join T8 on ... > Left join T9 on ... >Where ... >Group by c1, c2, c3 > > >Thank you, >Laurent. Please show us the explain analyse for the queries. Regards, Andreas -- Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance