Fixed error in SDK and test

sdk/aquery.h

@@ -75,4 +75,15 @@ extern void register_memory(void* ptr, deallocator_t deallocator);
 __AQEXPORT__(void) init_session(Context* cxt);
 
 #define __AQ_NO_SESSION__ __AQEXPORT__(void) init_session(Context*) {}
+void* memcpy(void*, void*, unsigned long long);
+struct ColRef_storage {
+	void* container;
+	unsigned int capacity, size;
+	const char* name;
+	int ty; // what if enum is not int?
+	template <class Ty, template <typename> class VT>
+	ColRef_storage(const VT<Ty>& vt) {
+		memcpy(this, &vt, sizeof(ColRef_storage));
+	}
+};
 #endif

sdk/aquery_mem.cpp

@@ -2,6 +2,7 @@
 
 #include <memory>
 #include <cstdlib>
+#include <cstring>
 #include <unordered_map>
 
 Session* session;

sdk/example.cpp

@@ -2,10 +2,13 @@
 // __AQ_NO_SESSION__
 #include "../server/table.h"
 
-__AQEXPORT__(ColRef<float>) mulvec(int a, ColRef<float> b){
+__AQEXPORT__(ColRef_storage) mulvec(int a, ColRef<float> b){
     return a * b;
 }
 
 __AQEXPORT__(double) mydiv(int a, int b){
-    return a / (double)b;
+    	printf("%d, %d\n", a, b);
+	double d = a/(double)b;
+	printf("%lf", d);
+	return d;
 }