On Tue, Apr 24, 2001 at 12:07:41AM -0400, Joel Burton wrote:
> On Mon, 23 Apr 2001, Paul Tomblin wrote:
>
> > Is the "BETWEEN" clause inclusive or exclusive? ie if I say "WHERE
> > latitude BETWEEN 45 and 55", will I get examples where the latitude equals
> > 45 or not? Also, is "latitude BETWEEN 45 and 55" any more efficient than
> > "latitude >= 45 AND latitude <= 55", or is it just a stylistic thing?
>
> yes, yes, and no:
>
>
> select 'exclusive' where 2 between 1 and 3;
> ?column?
> ----------
> inclusive
>
> test=# select 'inclusive' where 1 between 1 and 3;
> ?column?
> ----------
> inclusive
>
> test=# create view its_really_the_same_thing as select true where 1
> between 1 and 3;
>
> test=# \d its_really_the_same_thing
> ...
> View definition: SELECT 't'::bool WHERE ((1 >= 1) AND (1 <= 3));
>
>
> HTH,
> --
> Joel Burton <jburton@scw.org>
> Director of Information Systems, Support Center of Washington
just wanted to say -- BEAUTIFULLY executed reply.
not only did you answer the query succinctly and completely,
you showed, quite clearly, how to find out such answers.
"teach a man to fish..."
delightful!
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