Re: Improve ODBC Throughput ?
От | Arnaud Lesauvage |
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Тема | Re: Improve ODBC Throughput ? |
Дата | |
Msg-id | 45388D9E.1090301@freesurf.fr обсуждение исходный текст |
Ответ на | Re: Improve ODBC Throughput ? (Hiroshi Inoue <inoue@tpf.co.jp>) |
Ответы |
Re: Improve ODBC Throughput ?
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Список | pgsql-odbc |
Hiroshi Inoue a écrit : > Arnaud Lesauvage wrote: >> Hiroshi Inoue a écrit : >>> Arnaud Lesauvage wrote: >>>> Hi list ! >>>> >>>> I mostly use my PostgreSQL as a backend DB with Access2000 frontends. >>>> The tables are linked via psqlODBC. >>>> The problem I have is that even though queries / views run very fast, >>>> the data take a long time to arrive to the client. >>>> In the best situations, data is sent/received at ~500kB per second >>>> (for instance, tables with only one column, which is a very large >>>> text field >10.000 bytes per field). >>>> >>> >>> How are you setting the "Text As LongVarchar" option ? >>> Are the columns text or memo using Access ? >> >> TextAsLongVarchar=0 but the columns are VarChar in Access. > > AFAIK the max text(VarChar) size in Access is 255. > Can you get the content of fields > 10000 bytes correctly > under the setting ? In fact, the only text fields I have are memo in access, but I have very fex text fields. Most of them are character varying of length <= 254.
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