Re: SQL query
От | Raymond O'Donnell |
---|---|
Тема | Re: SQL query |
Дата | |
Msg-id | 49283203.4000704@iol.ie обсуждение исходный текст |
Ответ на | SQL query ("Michael Thorsen" <mthorsen1980@gmail.com>) |
Список | pgsql-general |
On 22/11/2008 16:07, Michael Thorsen wrote: > For the most part yes. The price and value were "real" columns, > otherwise the rest of it is the same. On a small data set I seem to get That's almost certainly the problem, so - rounding errors are causing the equality test in the join to fail. You should use NUMERIC for those floating-point values. Have a look at what the docs say on REAL and family: http://www.postgresql.org/docs/8.3/static/datatype-numeric.html#DATATYPE-FLOAT Ray. PS - please don't top-post, as it makes the thread difficult to follow. ------------------------------------------------------------------ Raymond O'Donnell, Director of Music, Galway Cathedral, Ireland rod@iol.ie Galway Cathedral Recitals: http://www.galwaycathedral.org/recitals ------------------------------------------------------------------
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