Обсуждение: postdrv & 'query string to long' revisted

Is there a workaround to the 8K query size limit?  I'm trying to export
some tables from access and am encountering the dreaded 'query string
too long' problem.

Thanks!

Craig

CB <craigbe@ids.net> writes:
> Is there a workaround to the 8K query size limit?  I'm trying to export
> some tables from access and am encountering the dreaded 'query string
> too long' problem.

Which ODBC driver are you using?

It looks like no one has gotten round to teaching ours that there is
no more query length limit --- it still has hardwired internal buffer
sizes :-(.  But the limit it imposes appears to be 16K not 8K in the
current code.  If you are getting 8K then you are probably using a
very old version of the ODBC code, or maybe someone else's driver
entirely.

A quick-hack solution is just to increase MAX_QUERY_SIZE in
src/interfaces/odbc/psqlodbc.h to whatever you need.

            regards, tom lane

CB writes:

> Is there a workaround to the 8K query size limit?

Upgrading to 7.0


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