Re: Cheers for DISTINCT ON
От | Chris Browne |
---|---|
Тема | Re: Cheers for DISTINCT ON |
Дата | |
Msg-id | 603at934ml.fsf@dba2.int.libertyrms.com обсуждение исходный текст |
Ответ на | Cheers for DISTINCT ON ("Peter Kovacs" <maxottovonstirlitz@gmail.com>) |
Список | pgsql-sql |
bruce@momjian.us (Bruce Momjian) writes: > Peter Kovacs wrote: >> I just wanted to give my cheers for DISTINCT ON. It is a great >> feature, I've just found a really good use for it. I am just wondering >> why it didn't make it into the standards. >> >> On a slightly unrelated note, I had the opportunity to work with EQUEL >> for a short period of time some 15 years ago before I started getting >> famililar with SQL. I clearly remember the disappointment/surprise I >> felt as I was struggling to translate some of the constructs I used >> with EQUEL into SQL. At that time, I thought that (the by then >> defunct) EQUEL was much more >> expressive/intuitive/flexible/easier-to-use than SQL. I've been >> wondering ever since why the worse so often gets the upper-hand over >> the better. (I am obviously having a hard time "growing-up" :-) ) > > As a former EQUEL user myself I had the same reaction to SQL. I think > EQUEL and SQL both have strengths, but I think SQL subqueries and the > cleaner handling of group aggregates makes SQL more useful in a variety > of ways. If EQUEL had continued to evolve, might it not have improved in these ways? -- output = ("cbbrowne" "@" "linuxfinances.info") http://linuxdatabases.info/info/lisp.html Ubuntu is an ancient African word, meaning "can't configure Debian"
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