Re: [GENERAL] Question on confusing behavior
| От | Bruce Momjian |
|---|---|
| Тема | Re: [GENERAL] Question on confusing behavior |
| Дата | |
| Msg-id | 199909232107.RAA25552@candle.pha.pa.us обсуждение исходный текст |
| Ответ на | Question on confusing behavior (Steve Wolfe <steve@iboats.com>) |
| Список | pgsql-general |
> Today, I told someone the syntax for "count" without thinking, and
> got it wrong - and in so doing, I found some interesting behavior.
>
>
> select count('table.fieldname');
>
> works. however...
>
> select count('table.fieldname') where table.fieldname='something';
Using the table.field in single-quotes makes it a string, and that is a
strange query.
Legally, you can do:
select count(*) where table.fieldname='something';
select count(table.fieldname) where table.fieldname='something';
However, I see your point, and will add it to the TODO list:
* SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes
--
Bruce Momjian | http://www.op.net/~candle
maillist@candle.pha.pa.us | (610) 853-3000
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