Re: BUG Report - Select distinct on

Dirk Elmendorf <delmendo@rackspace.com> writes:
> select distinct on label label from test;

> ERROR:parser: parse error at or near "label";

The syntax is different in 7.0.  Try

select distinct on (label) label from test;

Sorry about the loss of backwards compatibility, but this lets you
select distinct on expressions and even multiple expressions, which
wasn't possible with the old column-name-only syntax...

            regards, tom lane