MySQL Connector/ODBC Developer Guide
Connector/ODBC 3.51.19 fixes a specific issue with the 3.51.18 release. For a list of changes in the 3.51.18 release, see Changes in MySQL Connector/ODBC 3.51.18 (2007-08-08).
Because of Bug #10491 in the server, character string results were sometimes incorrectly identified as
SQL_VARBINARY. Until this server bug is corrected, the driver will identify all variable-length strings as
References: This issue is a regression of: Bug #10491.