TD-23684: Error 20057 "[Microsoft][ODBC SQL Server Driver]Invalid Descriptor Index " on type NVARCHAR(MAX)

[Dave Rabelink]

Article ID: KB6681218
TD-23684: Error 20057 "[Microsoft][ODBC SQL Server Driver]Invalid Descriptor Index " when selecting a column of type NVARCHAR(MAX)

Applies to
Gupta Team Developer (TD) 6.3.9, 7.0.2

Summary
When selecting a column of type NVARCHAR(MAX), Error 20057 "[Microsoft][ODBC SQL Server Driver]Invalid Descriptor Index " might appear.

Workaround
Make sure your SQL.INI longbuffer value is >= 65535.

Cause
SQL.ini longbuffer setting < 65535, default being 32000 when not set in the SQL.INI.

[Dave Rabelink]

This defect is fixed in TD 6.3.10