This is what puzzled me to make RODBC working on my Mac
impala <- odbcDriverConnect("Driver=/opt/cloudera/impalaodbc/lib/universal/libclouderaimpalaodbc.dylib;host=192.168.26.135;port=21050")
see put the driver directly in the connection string and do NOT use any curly brakets
Same applies to FreeTDS driver and other hadoop hive drivers












