Steve Clark <sclark@xxxxxxxxxxxxx> wrote: > I am confused by how postgres 8,4..13 is sorting my data. > select * from test order by data; > data > ---------- > > - > -- > 1 > 11 > 11F > 1F > a > b > C > F > -F > Feneric > Generic > (14 rows) > > The first row is a single space, the next row a single -, the next two -- . > What I don't understand is why the '-F', the ' Feneric' and > the ' Generic' sort where they do. > > I would expect the output to be like this: > > data > ---------- > > Feneric > Generic > - > -- > -F > 1 > 11 > 11F > 1F > a > b > C > F > (14 rows) > lc_collate > ------------- > en_US.UTF-8 PostgreSQL uses the OS collations. What you are getting matches my Ubuntu 14.04 machine: kgrittn@Kevin-Desktop:~/pg/master$ echo $LANG en_US.UTF-8 kgrittn@Kevin-Desktop:~/pg/master$ sort <<XXX > > Feneric > Generic > - > -- > -F > 1 > 11 > 11F > 1F > a > b > C > F > XXX - -- 1 11 11F 1F a b C F -F Feneric Generic -- Kevin Grittner EDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general