Are you on a 64bit machine? Studio 5 is a 32bit application which requires a 32bit driver and the datasource name (DSN) must be configured using the 32bit ODBC admin.
Have you considered using the PostgreSQL DAM?
> On Nov 21, 2017, at 12:42 PM, Dawid Mocke <email@example.com> wrote:
> Good day fellow Omnis Developers.
> I have been asked to switch a client from MSSQL to PostGres and as such I
> am dabbing my toes into the Omnis water again.
> I managed to download, setup and configure an instance of PostgreSQL om
> Windows 10 workstation and also managed to setup an ODBC link to it, using
> the Postgres ODBC driver.
> In Omnis Studio (5.1), I can open a SQL Browser link using the ODBC
> Connector and I can see the DB and managed to drag and drop a couple of
> Schemas to the DB and PostGres created the required tables, with a couple
> of quirks.
> In another Omnis project (it was many years ago and I had to seriously dust
> of the cob webs), I copied and pasted a Database Object of type ODBC.
> However I cannot get the ODBC Method $logon to actually open the connection
> to the DB via code (as mentioned, I can do this via the SQL Browser), I get
> the following error:
> “[Microsoft][ODBC Driver Manager] The specified DSN contains an
> architecture mismatch between the Driver and Application”
> I am a bit stumped, is there anyone that managed to create a logon to a
> PostGreSQL DB via code on a Windows Environment?
> Thank you,
> Dawid Mocke
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