but if I don't have any slave at this time why my command hang? -- View this message in context: http://postgresql.1045698.n5.nabble.com/synchronous-standby-names-with-tp4715117p4715224.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