int is long, select column can be function, some fixes..

just to get it work.. needs improvement

CMakeLists.txt

@@ -12,7 +12,7 @@ project(usql)
 set(PROJECT_NAME usql)
 
 set(SOURCE
-	exception.cpp lexer.cpp parser.cpp usql.cpp main.cpp table.cpp table.h row.cpp row.h csvreader.cpp csvreader.h)
+	exception.cpp lexer.cpp parser.cpp usql.cpp main.cpp table.cpp table.h row.cpp row.h csvreader.cpp csvreader.h ml_date.cpp)
 
 add_executable(${PROJECT_NAME} ${SOURCE})