Re: pgsql DATE
От | Andras Balogh |
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Тема | Re: pgsql DATE |
Дата | |
Msg-id | 012301bfb01f$0956ee30$0200a8c0@grafx.ro обсуждение исходный текст |
Ответ на | pgsql DATE ("Andras Balogh" <abalogh@grafx.ro>) |
Ответы |
Re: pgsql DATE
|
Список | pgsql-general |
Hi, Thank You for your reply. BUT as i mentioned the date_time field is VARCHAR. So if i use: date >= '01/4/2000' and date < '01/5/2000' this won't compare the dates it will compare Strings. so '02/4/2000' will be GREATER than '01/5/2000'. That is why i need a DATE TYPE for my field that can be used to create an index. So any other ideas? ----- Original Message ----- From: Martijn van Oosterhout <kleptog@cupid.suninternet.com> To: Andras Balogh <abalogh@grafx.ro> Cc: <pgsql-general@postgresql.org> Sent: Wednesday, April 26, 2000 5:41 PM Subject: Re: [GENERAL] pgsql DATE > Andras Balogh wrote: > > So i am looking a date type that would allow me to do the following with one > > (or a few) query > > (and to be fast too): > > -select all records for a given month > > -select the count of records where the hour is 14. > > -select all the records from the 7th week. > > -select count of records where the day of the week is Sunday. > > etc. > > How about you write your queries like: > > date >= '01/4/2000' and date < '01/5/2000' > > or equivalent. It allows use of the index but works the same. > Except for the day is Sunday though... > -- > Martijn van Oosterhout <kleptog@cupid.suninternet.com> > http://cupid.suninternet.com/~kleptog/
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