Re: [SQL] postmaster dies on complicated views
От | Bruce Momjian |
---|---|
Тема | Re: [SQL] postmaster dies on complicated views |
Дата | |
Msg-id | 199809180258.WAA19604@candle.pha.pa.us обсуждение исходный текст |
Ответ на | postmaster dies on complicated views (David Rugge <davidrugge@mindspring.com>) |
Список | pgsql-sql |
> I've had a strange problem with viewing through anything but a basic view. > The view in question is defined as follows: > > create view currentinfo > as > select pub_id, type, sum(price*ytd_sales), avg(price), avg(ytd_sales) > from titles > group by pub_id, type; > > this is what happens when I do a select * from currentinfo: > > PQexec() -- Request was sent to backend, but backend closed the channel > before responding. > This probably means the backend terminated abnormally before or while > processing the request. > > > What does this message mean? Once I get this error, I have to quit and > relaunch psql before any other queries are successful. I think the problem > may be with the "sum(price*ytd_sales)" selection, since I tried another > query with multiplication in the select clause and it died too. Can't use aggregates in views. Sorry. On the TODO list. -- Bruce Momjian | 830 Blythe Avenue maillist@candle.pha.pa.us | Drexel Hill, Pennsylvania 19026 http://www.op.net/~candle | (610) 353-9879(w) + If your life is a hard drive, | (610) 853-3000(h) + Christ can be your backup. |
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