Re: Postgre vs SAP Db
От | Mark Kirkwood |
---|---|
Тема | Re: Postgre vs SAP Db |
Дата | |
Msg-id | 3E3E3775.3010001@paradise.net.nz обсуждение исходный текст |
Ответ на | Postgre vs SAP Db ("Ivar" <ivar@lumisoft.ee>) |
Список | pgsql-general |
Justin Clift wrote: > Ivar wrote: > >> Hi, >> >> Does somebody have feature comparsion of Sap Db(www.sapdb.org) and >> postgre ? >> (Sap DB seems pretty powerfull and has native windows port) > I have recently been comparing these 2 databases.... the most notable difference was performance of joins with aggregates in the select list - Postgresql is reasonably fast and Sapdb is *very* slow. There are postings about poor join performance on the Sapdb mail list site too (referring to 7.3 and possibly 7.4 as well) Another interesting discovery was that there is no parameter to tune the equivalant of sort_mem (this may explain some of the problem with aggregates....) Finally the Sapdb command line processor (dbmcli) is a bit eccelectic in its requirements for an SQL command file (e.g. your typical delimited by ';' statement will *not* work) My overall feeling was that its a promising db, but somewhat immature at present. (I think Has J has already commented about how its a bit ugly to build from source.. which may or may not be an issue for some....) regards Mark
В списке pgsql-general по дате отправления: