Hello Adrian, Thank you for the additional reference links but my concern was less about how to find out what a function (formerly magic constant) that I encountered in the wild did but more about having a list that would educate newcomers/me about what is automatically available for use. For example, in the RLS example from my original message, had I the same or similar need as the poster I would not have been able to formulate the policy that I quoted because I had no clue that SESSION_USER even existed. Specifically I would not have been able to formulate the following clause, "... WITH CHECK (username = SESSION_USER)", w/o first knowing that SESSION_USER was a thing.
Regards, Dane On Sat, Jul 11, 2015 at 3:54 PM, Adrian Klaver <adrian.kla...@aklaver.com> wrote: > On 07/11/2015 12:21 PM, Raymond O'Donnell wrote: > >> On 11/07/2015 20:07, Dane Foster wrote: >> >> <snip> >> >> As a recent convert to the Church of Postgres I've been consuming vast >>> >> >> Welcome to the One True Faith! :-) >> >> amounts of information on PostgreSQL, and SESSION_USER is not the first >>> nor only, what I'm calling magic constant, that I've seen. Off the top >>> of my head, other examples that I've encountered are CURRENT_USER and >>> CURRENT_TIMESTAMP. >>> >>> So my question is this, is there a reference table in the documentation >>> that I haven't found yet that lists all magic constants and their >>> meaning? And if not in the official documentation is it in the wiki? >>> >> >> session_user, current_timestamp and current_user are all functions, not >> magic constants: >> >> http://www.postgresql.org/docs/9.4/static/functions-datetime.html >> http://www.postgresql.org/docs/9.4/static/functions-info.html >> >> I hope this helps, >> > > To add to this. In the documentation section: > > http://www.postgresql.org/docs/9.4/interactive/index.html > > there is a Search box where you can enter the word/phrase you are looking > for. > > If all else fails there is the Index: > > http://www.postgresql.org/docs/9.4/interactive/index.html > > > >> Ray. >> >> > > -- > Adrian Klaver > adrian.kla...@aklaver.com >
