"Bannert Matthias" <bannert@kof.ethz.ch> writes:
> Fwiw, I was not stubbornly insisting on nesting operators. Actually I switched from "=>" to the hstore function cause
> a note in the manual said it was deprecated (http://www.postgresql.org/docs/9.0/static/hstore.html). Somehow I must
haveunderstand that note the wrong way.
> What's your take on that operator being deprecated?
That's the old SQL operator (which is not even there anymore) that's
equivalent to the hstore(text,text) constructor function, ie
"text => text returning hstore". It's quite a different concept
from the => notation inside an hstore literal. That is:
'foo'::text => 'bar'::text
is not like
'"foo" => "bar"'::hstore
even though they have the same end result.
regards, tom lane
