Fix for truncation of strings with FreeTDS driver
Fix for truncation of strings with FreeTDS driver

Added a fix for FreeTDS. It was interpreting stings longer than 4000
characters as NVARCHAR(4000) instead of NVARCHAR(MAX).  Update so now it
interprets strings longer than 4000 characters as SQL_WLONGVARCHAR

jbaxter0810/node-odbc,jbaxter0810/node-odbc,jbaxter0810/node-odbc,jbaxter0810/node-odbc