On 2017/12/06 6:35 PM, Christian Schmitz wrote:
Actually, the left outer join is sufficient to execute all the outer
join operators:
- right outer join: just swap the "from" arguments
- full outer joins: union of left and right outer joins
Couldn’t SQLite implement that and do the swap for us?
As well as the union thing?
You mean make SQLite less Lite, but with Zero computational advantage,
by simply adding syntactic sugar bloat? - I'm going to have to vote No
on that. (Luckily my vote counts extremely little.)
I think the reason SQLite never implemented it is precisely because of
the fact that it simply amounts to syntactic specialization and no real
computational advantage. That said, I'm not against adding those joins,
just perhaps implemented in a most-efficient way rather than a simple
transcription of my lazy-code. (Unless of course that ends up being the
most efficient way to do it.)
_______________________________________________
sqlite-users mailing list
sqlite-users@mailinglists.sqlite.org
http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
