From: | Willy De la Court <Willy(dot)DelaCourt(at)pandora(dot)be> |
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To: | "pgsql-interfaces(at)postgreSQL(dot)org" <pgsql-interfaces(at)postgreSQL(dot)org> |
Subject: | Serious problem with the odbc driver and VFP |
Date: | 2000-02-29 20:58:39 |
Message-ID: | 01BF8300.23525460.Willy.DelaCourt@pandora.be |
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Lists: | pgsql-interfaces |
After byron fixed the odbc driver to version 0009 I could use foxpro
perfectly with small tables.
Now another problem surfaces.
I think the guys that wrote VFP only had microsoft SQL server in mind
because when using the vfp interface to create views they frequently use
SQLPREPARE "SELECT * FROM TABLE" and then use SQLNumResultCols to get a
result.
For small tables this is no problem but if you have a multi megabyte table
with about 50000 records in you do have a problem.
SQLPREPARE works OK but when VFP executes SQLNumResultCols directly after
the Prepare the odbc driver submits the "SELECT * FROM TABLE" to the
backend effectively executing the query. Result is 2 minutes waiting time
and sometimes memory error on the backend.
Any ideas how to solve this problem.
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