I posted this to the general newsgroup
'comp.databases.postgresql.questions' a little while ago, and got no takers!
<grin>
As I am fairly sure this is a ODBC driver issue I am reposting it here,
somewhat ammended, in the hope of enlightenment.
===================================
I have run up against a problem trying to use the PostgreSQL ODBC
Windows driver, and wondered if anyone can point me in the right
direction.
Basics:
Server: PostgreSQL 7.2.1 on i386-unknown-freebsd4.5,
compiled by GCC 2.95.3
ODBC driver: PostgreSQL (not beta) 7.02.00.05
Windows: NT4 - SP 4
Excel 2000
I have a view on the server from which I wish to import data into
Excel, using MS Query.
If I type the SQL query direct into MSQuery it works fine, and the
data is fetched.
If I attempt to use the MSQuery 'wizard' then when I get to 'Finish'
and ask to return the data to Excel then I get an Error box with the
message: "Error: No such attribute or function 'oid'". This message
is echoed in the PostgreSQL logs.
I enabled the log files in the ODBC driver, and noticed that an
attribute 'oid' was added to the query that I would otherwise have
expected the MSQuery app to send. AFAIK views don't have oids, so it
would seem to me that the driver is misidentifying the view as a table
with oids?
Looking further at the logs, and going though the driver source, it
*looks* to me as if the code for the ODBC function SQLSpecialColumns
when called with IdentifierType = SQL_BEST_ROWID may be the culprit.
It *always* (AFAICT) returns oid for this call.
Looking through info.c I note the following:
There is a comment early in the function where it says 'Create the
query to find out if this is a view or not...', and fetches
pg_class.relhasrules. However in the code for SQLTables is the
comment 'view is represented by its relkind since 7.1'.
Any suggestions as to work-arounds, patches, or tests to try would
be welcomed.
========================
Regards,
Harry.
