diff --git a/.gitignore b/.gitignore
index 43c1c46..0c88897 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
+libaquery.a
+aq
+.cached
 *.json
 !sample_ast.json
 *.o
diff --git a/Makefile b/Makefile
index 88d2a94..1cadff1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,16 @@
 OS_SUPPORT = 
 MonetDB_LIB = 
+MonetDB_INC = 
 Threading = 
 CXXFLAGS = --std=c++1z
-OPTFLAGS = -O3 -flto -march=native 
+OPTFLAGS = -O3 
+LINKFLAGS = -flto
 SHAREDFLAGS = -shared -fPIC
+LIBTOOL = $(shell $(CXX) --version | grep -q 'clang' && echo "libtool -static -o"|| echo "ar rcs")
+USELIB_FLAG = $(shell $(CXX) --version | grep -q 'clang' && echo "-Wl,-force_load"|| echo "-Wl,--whole-archive")
+LIBAQ_SRC = server/server.cpp server/monetdb_conn.cpp server/io.cpp 
 ifeq ($(PCH), 1)
-	PCHFLAGS = -include server/aggregations.h
+	PCHFLAGS = -include server/pch.hpp
 else
 	PCHFLAGS = 
 endif
@@ -13,43 +18,61 @@ endif
 ifeq ($(OS),Windows_NT)
 	NULL_DEVICE = NUL
 	OS_SUPPORT += server/winhelper.cpp
-	MonetDB_LIB += -Imonetdb/msvc msc-plugin/monetdbe.dll 
+	MonetDB_LIB += msc-plugin/monetdbe.dll 
+	MonetDB_INC +=  -Imonetdb/msvc
 else
 	UNAME_S = $(shell uname -s)
 	UNAME_M = $(shell uname -m)
 	NULL_DEVICE = /dev/null
 	MonetDB_LIB = 
 	ifeq ($(UNAME_S),Darwin)
-		MonetDB_LIB += -L`brew --prefix monetdb`/lib 
+		MonetDB_LIB += -L$(shell brew --prefix monetdb)/lib 
+		MonetDB_INC += -I$(shell brew --prefix monetdb)/include/monetdb
 		ifneq ($(UNAME_M),arm64)
 			OPTFLAGS += -march=native
 		endif
 	else
 		OPTFLAGS += -march=native
+		MonetDB_INC += -I/usr/local/include/monetdb -I/usr/include/monetdb 
 	endif
-	MonetDB_LIB += -I/usr/local/include/monetdb -I/usr/include/monetdb -lmonetdbe
+	MonetDB_LIB += -lmonetdbe
 endif
 
 ifeq ($(THREADING),1)
-	Threading += server/threading.cpp -DTHREADING
+	LIBAQ_SRC += server/threading.cpp
+	Threading +=  -DTHREADING
 endif
-pch:
-	$(CXX) -x c++-header server/aggregations.h -o server/aggregations.h.pch
+
 info:
 	$(info $(OS_SUPPORT))
 	$(info $(OS)) 
 	$(info $(Threading))
 	$(info "test")
+	$(info $(LIBTOOL))
+	$(info $(MonetDB_INC))
 	$(info $(CXX))
+pch:
+	$(CXX) -x c++-header server/pch.hpp $(MonetDB_INC) $(OPTFLAGS) $(CXXFLAGS) $(Threading)
 libaquery.a:
-	$(CXX) -c server/server.cpp server/io.cpp server/table.cpp $(OS_SUPPORT) $(Threading) $(OPTFLAGS) $(CXXFLAGS) -o server.bin
+	$(CXX) -c $(PCHFLAGS) $(LIBAQ_SRC) $(MonetDB_INC) $(MonetDB_LIB) $(OS_SUPPORT) $(Threading) $(OPTFLAGS) $(LINKFLAGS) $(CXXFLAGS) &&\
+	$(LIBTOOL) libaquery.a *.o &&\
+	ranlib libaquery.a
+
 server.bin:
-	$(CXX) server/server.cpp server/io.cpp server/table.cpp $(OS_SUPPORT) $(Threading) $(OPTFLAGS) $(CXXFLAGS) -o server.bin
+	$(CXX) $(LIBAQ_SRC) $(LINKFLAGS) $(OS_SUPPORT) $(Threading)  $(MonetDB_INC) $(MonetDB_LIB) $(OPTFLAGS) $(CXXFLAGS) -o server.bin
+launcher:
+	$(CXX) -D__AQ_BUILD_LAUNCHER__ $(LIBAQ_SRC) $(LINKFLAGS) $(OS_SUPPORT) $(Threading)  $(MonetDB_INC) $(MonetDB_LIB) $(OPTFLAGS) $(CXXFLAGS) -o aq
 server.so:
 #	$(CXX) server/server.cpp server/monetdb_conn.cpp -fPIC -shared $(OS_SUPPORT) monetdb/msvc/monetdbe.dll --std=c++1z -O3 -march=native -o server.so -I./monetdb/msvc 
-	$(CXX) $(SHAREDFLAGS) server/server.cpp server/io.cpp server/table.cpp $(OS_SUPPORT) server/monetdb_conn.cpp $(Threading) $(MonetDB_LIB) $(OPTFLAGS) $(CXXFLAGS) -o server.so 
+	$(CXX) $(SHAREDFLAGS) $(PCHFLAGS) $(LIBAQ_SRC) $(OS_SUPPORT) $(Threading) $(MonetDB_INC) $(MonetDB_LIB) $(OPTFLAGS) $(LINKFLAGS) $(CXXFLAGS) -o server.so 
+server_uselib:
+	$(CXX) $(SHAREDFLAGS) $(USELIB_FLAG),libaquery.a $(MonetDB_LIB) $(OPTFLAGS) $(LINKFLAGS) $(CXXFLAGS) -o server.so
+
 snippet:
-	$(CXX) $(SHAREDFLAGS) $(PCHFLAGS) out.cpp server/server.cpp server/monetdb_conn.cpp server/table.cpp server/io.cpp $(MonetDB_LIB) $(OPTFLAGS) $(CXXFLAGS) -o dll.so
+	$(CXX) $(SHAREDFLAGS) $(PCHFLAGS) out.cpp $(LIBAQ_SRC) $(MonetDB_INC) $(MonetDB_LIB) $(Threading) $(OPTFLAGS) $(LINKFLAGS) $(CXXFLAGS) -o dll.so
+snippet_uselib:
+	$(CXX) $(SHAREDFLAGS) $(PCHFLAGS) out.cpp libaquery.a $(MonetDB_INC) $(Threading) $(MonetDB_LIB) $(OPTFLAGS) $(LINKFLAGS) $(CXXFLAGS) -o dll.so
+
 docker:
 	docker build -t aquery .
 
diff --git a/README.md b/README.md
index 7176e32..03630f8 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,8 @@ AQuery++ Database is a cross-platform, In-Memory Column-Store Database that inco
 - [x] Limitation: putting ColRefs back to monetdb. 
 - [ ] Limitation: String operations and Date/Time data type. 
 - [ ] C++ Meta-Programming: Eliminate template recursions as much as possible.
-
+- [ ] Limitation: Date and Time, String operations, Funcs in groupby agg.
+  
 # Installation
 ## Requirements
 1. Recent version of Linux, Windows or MacOS, with recent C++ compiler that has C++17 (1z) support.
diff --git a/aquery_config.py b/aquery_config.py
index 1731540..81a67af 100644
--- a/aquery_config.py
+++ b/aquery_config.py
@@ -11,19 +11,6 @@ cygroot = 'c:/msys64/usr/bin'
 msbuildroot = 'd:/gg/vs22/MSBuild/Current/Bin'
 __config_initialized__ = False
 
-class Build_Config:
-    def __init__(self) -> None:
-        self.OptimizationLv = '4' # [O0, O1, O2, O3, Ofast]
-        self.Platform = 'x64'
-        self.PCH = ''
-        self.StaticLib = ''
-        self.fLTO = True
-        self.fmarchnative = True
-        
-    def configure(self):
-        pass
-
-
 def init_config():
     global __config_initialized__, os_platform
 ## SETUP ENVIRONMENT VARIABLES
diff --git a/build.py b/build.py
new file mode 100644
index 0000000..635e807
--- /dev/null
+++ b/build.py
@@ -0,0 +1,157 @@
+from dataclasses import dataclass
+from enum import Enum, auto
+from tabnanny import check
+from aquery_config import *
+import sys
+import os
+import subprocess
+import hashlib
+import pickle
+from engine.utils import nullstream
+from typing import Dict, Optional, Set, Union
+@dataclass
+class checksums:
+    libaquery_a : Optional[Union[bytes, bool]] = None
+    pch_hpp_gch : Optional[Union[bytes, bool]] = None
+    server : Optional[Union[bytes, bool]] = None
+    sources : Union[Dict[str, bytes], bool] = None
+    def calc(self, libaquery_a = 'libaquery.a', 
+                pch_hpp_gch = 'server/pch.hpp.gch', 
+                server = 'server.so'
+        ):
+        for key in self.__dict__.keys():
+            try:
+                with open(eval(key), 'rb') as file:
+                    self.__dict__[key] = hashlib.md5(file.read()).digest()
+            except (FileNotFoundError, NameError):
+                pass
+        sources = [*build_manager.headerfiles, *build_manager.sourcefiles]
+        self.sources = dict()
+        for key in sources:
+            try:
+                with open(key, 'rb') as file:
+                    self.sources[key] = hashlib.md5(file.read()).digest()
+            except FileNotFoundError:
+                print('missing component: ' + key)
+                self.sources[key] = None
+    def __ne__(self, __o: 'checksums') -> 'checksums':
+        ret = checksums()
+        for key in self.__dict__.keys():
+            try:
+                ret.__dict__[key] = self.__dict__[key] != __o.__dict__[key]
+            except KeyError:
+                ret.__dict__[key] = True
+        return ret
+    
+    def __eq__(self, __o: 'checksums') -> 'checksums':
+        ret = checksums()
+        for key in self.__dict__.keys():
+            try:
+                ret.__dict__[key] = self.__dict__[key] == __o.__dict__[key]
+            except KeyError:
+                ret.__dict__[key] = False
+        return ret
+
+        
+        
+class build_manager:
+    sourcefiles = ['server/server.cpp', 'server/io.cpp', 
+                   'server/monetdb_conn.cpp', 'server/threading.cpp',
+                   'server/winhelper.cpp'
+                   ]
+    headerfiles = ['server/aggregations.h', 'server/hasher.h', 'server/io.h',
+                   'server/libaquery.h', 'server/monetdb_conn.h', 'server/pch.hpp',
+                   'server/table.h', 'server/threading.h', 'server/types.h', 'server/utils.h',
+                   'server/winhelper.h', 'server/gc.hpp', 'server/vector_type.hpp', 
+                   'server/table_ext_monetdb.hpp'
+                   ]
+   
+    class DriverBase:
+        def __init__(self, mgr : 'build_manager') -> None:
+            self.mgr = mgr
+            self.build_cmd = ['']
+        def libaquery_a(self) :
+            pass
+        def pch(self):
+            pass
+        def build(self, stdout = sys.stdout, stderr = sys.stderr):
+            for c in self.build_cmd:
+                subprocess.call(c, stdout = stdout, stderr = stderr)
+                
+    class MakefileDriver(DriverBase):
+        def __init__(self, mgr : 'build_manager') -> None:
+            super().__init__(mgr)
+            os.environ['PCH'] = f'{mgr.PCH}'
+            os.environ['CXX'] = mgr.cxx if mgr.cxx else 'c++'
+        
+        def libaquery_a(self):
+            self.build_cmd = [['rm', 'libaquery.a'],['make', 'libaquery.a']]
+            return self.build()
+        def pch(self):
+            self.build_cmd = [['rm', 'server/pch.hpp.gch'], ['make', 'pch']]
+            return self.build()
+        def server(self):
+            if self.mgr.StaticLib:
+                self.build_cmd = [['rm', 'server.so'], ['make', 'server_uselib']]
+            else:
+                self.build_cmd = [['rm', 'server.so'], ['make', 'server.so']]
+            return self.build()
+            
+        def snippet(self):
+            if self.mgr.StaticLib:
+                self.build_cmd = [['make', 'snippet_uselib']]
+            else:
+                self.build_cmd = [['rm', 'dll.so'], ['make', 'snippet']]
+            return self.build()
+        
+    class PythonDriver(DriverBase):
+        def __init__(self, mgr : 'build_manager') -> None:
+            super().__init__(mgr)
+            
+    class Driver(Enum):
+        Makefile = auto()
+        Python = auto()
+        CMake = auto() 
+        MSBuild = auto()
+ 
+    def __init__(self) -> None:
+        self.method = 'make'
+        self.cxx = ''
+        self.OptimizationLv = '4' # [O0, O1, O2, O3, Ofast]
+        self.Platform = 'x64'
+        self.PCH = 1
+        self.StaticLib = 1
+        self.fLTO = 1
+        self.fmarchnative = 1
+        self.driver = build_manager.MakefileDriver(self)
+        self.cache_status = checksums()
+        
+    def build_dll(self):
+        return self.driver.snippet()
+        
+    def build_caches(self, force = False):
+        cached = checksums()
+        current = checksums()
+        current.calc()
+        try:
+            with open('.cached', 'rb') as cache_sig:
+                cached = pickle.loads(cache_sig.read())
+        except FileNotFoundError:
+            pass
+        self.cache_status = current != cached
+        
+        if  force or self.cache_status.sources:
+            self.driver.pch()
+            self.driver.libaquery_a()
+            self.driver.server()
+        else:
+            if self.cache_status.libaquery_a:
+                self.driver.libaquery_a()
+            if self.cache_status.pch_hpp_gch:
+                self.driver.pch()
+            if self.cache_status.server:
+                self.driver.server()
+        current.calc()
+        with open('.cached', 'wb') as cache_sig:
+            cache_sig.write(pickle.dumps(current))
+            
\ No newline at end of file
diff --git a/engine/utils.py b/engine/utils.py
index 2337765..ac1ce24 100644
--- a/engine/utils.py
+++ b/engine/utils.py
@@ -81,11 +81,13 @@ class _Counter:
 
 import re
 ws = re.compile(r'\s+')
+import os
 
 def add_dll_dir(dll: str):
-    import sys, os
+    import sys
     if sys.version_info.major >= 3 and sys.version_info.minor >7 and os.name == 'nt':
         os.add_dll_directory(dll)
     else:
         os.environ['PATH'] = os.path.abspath(dll) + os.pathsep + os.environ['PATH']
-                    
\ No newline at end of file
+        
+nullstream = open(os.devnull, 'w')
diff --git a/prompt.py b/prompt.py
index 46a2e69..71d9201 100644
--- a/prompt.py
+++ b/prompt.py
@@ -105,8 +105,8 @@ import ctypes
 import numpy as np
 from engine.utils import ws
 from engine.utils import add_dll_dir
-
-nullstream = open(os.devnull, 'w')
+from engine.utils import nullstream
+from build import build_manager
 
 ## CLASSES BEGIN
 class RunType(enum.Enum):
@@ -179,6 +179,7 @@ class PromptState():
     init : Callable[['PromptState'], None] = lambda _:None
     stmts = ['']
     payloads = {}
+    buildmgr : Optional[build_manager]= None
 ## CLASSES END
 
 ## FUNCTIONS BEGIN
@@ -263,14 +264,15 @@ def init_prompt() -> PromptState:
     aquery_config.init_config()
     
     state = PromptState()
-    if aquery_config.rebuild_backend:
-        try:
-            os.remove(state.server_bin) 
-        except Exception as e:
-            print(type(e), e)
-        subprocess.call(['make', "info"])
-        subprocess.call(['make', state.server_bin], stdout=nullstream)
-        
+    # if aquery_config.rebuild_backend:
+    #     try:
+    #         os.remove(state.server_bin) 
+    #     except Exception as e:
+    #         print(type(e), e)
+    #     subprocess.call(['make', "info"])
+    #     subprocess.call(['make', state.server_bin], stdout=nullstream)
+    state.buildmgr = build_manager()  
+    state.buildmgr.build_caches()  
     state.cfg = Config(state.server_mode)
         
     if state.server_mode == RunType.IPC:
@@ -337,7 +339,7 @@ def prompt(running = lambda:True, next = input, state = None):
             if q == 'exec': # generate build and run (AQuery Engine)
                 state.cfg.backend_type = Backend_Type.BACKEND_AQuery.value
                 cxt = engine.exec(state.stmts, cxt, keep)
-                if subprocess.call(['make', 'snippet'], stdout = nullstream) == 0:
+                if state.buildmgr.build_dll() == 0:
                     state.set_ready()
                 continue
             elif q.startswith('echo '):
@@ -377,7 +379,7 @@ def prompt(running = lambda:True, next = input, state = None):
                     with open('out.cpp', 'wb') as outfile:
                         outfile.write((cxt.finalize()).encode('utf-8'))
                     if build_this:
-                        subprocess.call(['make', 'snippet'], stdout = nullstream)
+                        state.buildmgr.build_dll()
                         state.cfg.has_dll = 1
                 else:
                     state.cfg.has_dll = 0
diff --git a/reconstruct/ast.py b/reconstruct/ast.py
index cfefac6..9442ce8 100644
--- a/reconstruct/ast.py
+++ b/reconstruct/ast.py
@@ -296,7 +296,7 @@ class select_into(ast_node):
             raise Exception('No out_table found.')
         else:
             self.context.headers.add('"./server/table_ext_monetdb.hpp"')
-            self.ccode = f'{self.parent.out_table.table_name}->monetdb_append_table(cxt->alt_server, \"{node}\");'
+            self.ccode = f'{self.parent.out_table.contextname_cpp}->monetdb_append_table(cxt->alt_server, \"{node}\");'
             
     def produce_sql(self, node):
         self.sql = f' INTO {node}'
diff --git a/sdk/aquery.h b/sdk/aquery.h
index 8e50517..e5da083 100644
--- a/sdk/aquery.h
+++ b/sdk/aquery.h
@@ -1,5 +1,6 @@
 #ifndef _AQUERY_H
 #define _AQUERY_H
+
 enum Log_level {
 	LOG_INFO,
 	LOG_ERROR,
@@ -11,6 +12,7 @@ enum Backend_Type {
 	BACKEND_MonetDB,
 	BACKEND_MariaDB
 };
+
 struct Config{
     int running, new_query, server_mode,
 	 	backend_type, has_dll, n_buffers;
@@ -71,5 +73,5 @@ extern void Afree(void * mem);
 extern void register_memory(void* ptr, deallocator_t deallocator);
 extern void init_session(Context* cxt);
 
-#define __AQ_NO_SESSION__ void init_session(Context*) {}
+#define __AQ_NO_SESSION__ __AQEXPORT__(void) init_session(Context*) {}
 #endif
\ No newline at end of file
diff --git a/sdk/aquery_mem.cpp b/sdk/aquery_mem.cpp
index 60c969e..43e1afa 100644
--- a/sdk/aquery_mem.cpp
+++ b/sdk/aquery_mem.cpp
@@ -25,7 +25,6 @@ void register_memory(void* ptr, deallocator_t deallocator){
     memmap->operator[](ptr) = deallocator;
 }
 
-void init_session(Context* cxt){
+__AQEXPORT__(void) init_session(Context* cxt){
     session = &cxt->current;
-   // session->memory_map = new std::unordered_map<void*, deallocator_t>();
-}
\ No newline at end of file
+}
diff --git a/sdk/example.cpp b/sdk/example.cpp
index 4ce9715..36c2b8d 100644
--- a/sdk/example.cpp
+++ b/sdk/example.cpp
@@ -1,5 +1,5 @@
 #include "aquery.h"
-__AQ_NO_SESSION__
+// __AQ_NO_SESSION__
 #include "../server/table.h"
 
 __AQEXPORT__(ColRef<float>) mulvec(int a, ColRef<float> b){
diff --git a/server/Makefile b/server/Makefile
index 7acb78e..cb082c8 100644
--- a/server/Makefile
+++ b/server/Makefile
@@ -1,6 +1,6 @@
 debug:
-	g++ -g3 -O0 server/server.cpp server/table.cpp  -o a.out -Wall -Wextra -Wpedantic -lpthread
+	g++ -g3 -O0 server/server.cpp server/io.cpp  -o a.out -Wall -Wextra -Wpedantic -lpthread
 	
 test:
-	g++ --std=c++1z -g3 -O0 server.cpp table.cpp  -o a.out -Wall -Wextra -Wpedantic -lpthread
+	g++ --std=c++1z -g3 -O0 server.cpp io.cpp  -o a.out -Wall -Wextra -Wpedantic -lpthread
 	
diff --git a/server/gc.cpp b/server/gc.cpp
deleted file mode 100644
index e69de29..0000000
diff --git a/server/gc.hpp b/server/gc.hpp
index dfdccb9..4c66060 100644
--- a/server/gc.hpp
+++ b/server/gc.hpp
@@ -1,29 +1,28 @@
 #pragma once
-#include <vector>
+#include <vector_type>
 #include <utility>
 #include <thread>
 #include <chrono>
 class GC {
 	template<class T>
-	using vector = std::vector<T>;
+	using vector = vector_type<T>;
 	template<class ...T>
 	using tuple = std::tuple<T...>;
 	size_t current_size, max_size, interval, forced_clean;
 	bool running, alive;
 //  ptr, dealloc, ref, sz
-	vector<tuple<void*, void (*)(void*), uint32_t, uint32_t>> q;
+	vector<tuple<void*, void (*)(void*)>> q;
 	std::thread handle;
 	void gc()
 	{
 		
 	}
-	template <class T>
-	void reg(T* v, uint32_t ref, uint32_t sz, 
-		void(*f)(void*) = [](void* v) {delete[] ((T*)v); }) {
+	void reg(void* v, uint32_t ref, uint32_t sz, 
+		void(*f)(void*) = [](void* v) {free (v); }) {
 		current_size += sz;
 		if (current_size > max_size)
 			gc();
-		q.push_back({ v, f, ref, sz });
+		q.push_back({ v, f });
 	}
 	void daemon() {
 		using namespace std::chrono;
diff --git a/server/io.cpp b/server/io.cpp
index b05907f..c4b7c69 100644
--- a/server/io.cpp
+++ b/server/io.cpp
@@ -8,4 +8,89 @@ void setgbuf(char* buf){
 		gbuf = b;
 	else
 		gbuf = buf;
-}	
\ No newline at end of file
+}	
+
+#include "table.h"
+
+
+#ifdef __SIZEOF_INT128__
+template <>
+void print<__int128_t>(const __int128_t& v, const char* delimiter){
+	char s[41];
+	s[40] = 0;
+	std::cout<< get_int128str(v, s+40)<< delimiter;
+}
+template <>
+void print<__uint128_t>(const __uint128_t&v, const char* delimiter){
+	char s[41];
+	s[40] = 0;
+    std::cout<< get_uint128str(v, s+40) << delimiter;
+}
+std::ostream& operator<<(std::ostream& os, __int128 & v)
+{
+	print(v);
+	return os;
+}
+std::ostream& operator<<(std::ostream& os, __uint128_t & v)
+{
+	print(v);
+	return os;
+}
+#endif
+
+template <>
+void print<bool>(const bool&v, const char* delimiter){
+	std::cout<< (v?"true":"false") << delimiter;
+}
+
+
+#include <chrono>
+#include <ctime>
+namespace types {
+	using namespace std;
+	using namespace chrono;
+	string date_t::toString() const {
+		uint32_t curr_v = val;
+		tm;
+		time_t;
+		return string() + string("/") + string() + string("/") + string();
+	}
+	string time_t::toString() const {
+		uint32_t curr_v = val;
+		
+		return string() + string("/") + string() + string("/") + string();
+	}
+}
+
+#include "utils.h"
+#include <random>
+using std::string;
+string base62uuid(int l = 8) {
+    using namespace std;
+    constexpr static const char* base62alp = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+    static mt19937_64 engine(chrono::system_clock::now().time_since_epoch().count());
+    static uniform_int_distribution<uint64_t> u(0x10000, 0xfffff);
+    uint64_t uuid = (u(engine) << 32ull) + (chrono::system_clock::now().time_since_epoch().count() & 0xffffffff);
+    printf("%p\n", uuid);
+    string ret;
+    while (uuid && l-- >= 0) {
+        ret = string("") + base62alp[uuid % 62] + ret;
+        uuid /= 62;
+    }
+    return ret;
+}
+
+
+template<typename _Ty>
+inline void vector_type<_Ty>::out(uint32_t n, const char* sep) const
+{
+	n = n > size ? size : n;
+	std::cout << '(';
+	{	
+		uint32_t i = 0;
+		for (; i < n - 1; ++i)
+			std::cout << this->operator[](i) << sep;
+		std::cout << this->operator[](i);
+	}
+	std::cout << ')';
+}
diff --git a/server/pch.hpp b/server/pch.hpp
new file mode 100644
index 0000000..c285204
--- /dev/null
+++ b/server/pch.hpp
@@ -0,0 +1,17 @@
+#pragma once
+
+#include "libaquery.h"
+#include "aggregations.h"
+#include <iostream>
+#include <chrono>
+#include "monetdb_conn.h"
+#include "monetdbe.h"
+#include "threading.h"
+#include "../csv.h"
+#ifdef _WIN32
+#include "winhelper.h"
+#else
+#include <dlfcn.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#endif
diff --git a/server/server.cpp b/server/server.cpp
index 9436ed0..87b0f87 100644
--- a/server/server.cpp
+++ b/server/server.cpp
@@ -1,7 +1,6 @@
 #include "../csv.h"
 #include <iostream>
 #include <string>
-//#include <thread>
 #include <chrono>
 
 #include "libaquery.h"
@@ -69,14 +68,17 @@ __AQEXPORT__(bool) have_hge(){
     return false;
 #endif
 }
+
 Context::Context() {
     current.memory_map = new std::unordered_map<void*, deallocator_t>;
     init_session();
 }
+
 Context::~Context() {
     auto memmap = (std::unordered_map<void*, deallocator_t>*) this->current.memory_map;
     delete memmap;
 }
+
 void Context::init_session(){
     if (log_level == LOG_INFO){
         memset(&(this->current.stats), 0, sizeof(Session::Statistic));
@@ -226,7 +228,7 @@ int dll_main(int argc, char** argv, Context* cxt){
 
 int launcher(int argc, char** argv){
     std::string str = " ";
-    for (int i = 0; i < argc; i++){
+    for (int i = 1; i < argc; i++){
         str += argv[i];
         str += " ";
     }
@@ -235,6 +237,9 @@ int launcher(int argc, char** argv){
 }
 
 extern "C" int __DLLEXPORT__ main(int argc, char** argv) {
+#ifdef __AQ_BUILD_LAUNCHER__
+   return launcher(argc, argv);
+#endif
    puts("running");
    Context* cxt = new Context();
    cxt->log("%d %s\n", argc, argv[1]);
@@ -248,11 +253,7 @@ extern "C" int __DLLEXPORT__ main(int argc, char** argv) {
    if (argc < 0)
         return dll_main(argc, argv, cxt);
    else if (argc <= 1)
-#ifdef __AQ__TESTING__
         return test_main();
-#else
-        return launcher(argc, argv);
-#endif
    else
        shmname = argv[1];
    SharedMemory shm = SharedMemory(shmname);
diff --git a/server/server.vcxproj b/server/server.vcxproj
index bc613e7..638cc00 100644
--- a/server/server.vcxproj
+++ b/server/server.vcxproj
@@ -255,7 +255,7 @@
   <ItemGroup>
     <Media Include="..\out.cpp" />
     <ClCompile Include="monetdb_conn.cpp" />
-    <ClCompile Include="table.cpp" />
+    <ClCompile Include="io.cpp" />
     <ClCompile Include="server.cpp" />
     <ClCompile Include="types.cpp" />
     <ClCompile Include="utils.cpp" />
diff --git a/server/table.cpp b/server/table.cpp
deleted file mode 100644
index 5e5d194..0000000
--- a/server/table.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-#include "table.h"
-
-
-#ifdef __SIZEOF_INT128__
-template <>
-void print<__int128_t>(const __int128_t& v, const char* delimiter){
-	char s[41];
-	s[40] = 0;
-	std::cout<< get_int128str(v, s+40)<< delimiter;
-}
-template <>
-void print<__uint128_t>(const __uint128_t&v, const char* delimiter){
-	char s[41];
-	s[40] = 0;
-    std::cout<< get_uint128str(v, s+40) << delimiter;
-}
-std::ostream& operator<<(std::ostream& os, __int128 & v)
-{
-	print(v);
-	return os;
-}
-std::ostream& operator<<(std::ostream& os, __uint128_t & v)
-{
-	print(v);
-	return os;
-}
-#endif
-
-template <>
-void print<bool>(const bool&v, const char* delimiter){
-	std::cout<< (v?"true":"false") << delimiter;
-}
diff --git a/server/table.h b/server/table.h
index d2bbf88..b52b494 100644
--- a/server/table.h
+++ b/server/table.h
@@ -7,6 +7,7 @@
 #include "vector_type.hpp"
 #include <iostream>
 #include <string>
+#include <algorithm>
 #include "io.h"
 #undef ERROR
 template <typename T>
diff --git a/server/types.cpp b/server/types.cpp
deleted file mode 100644
index e30164b..0000000
--- a/server/types.cpp
+++ /dev/null
@@ -1,20 +0,0 @@
-#include "types.h"
-#include <string>
-#include <iostream>
-#include <chrono>
-#include <ctime>
-namespace types {
-	using namespace std;
-	using namespace chrono;
-	string date_t::toString() const {
-		uint32_t curr_v = val;
-		tm;
-		time_t;
-		return string() + string("/") + string() + string("/") + string();
-	}
-	string time_t::toString() const {
-		uint32_t curr_v = val;
-		
-		return string() + string("/") + string() + string("/") + string();
-	}
-}
\ No newline at end of file
diff --git a/server/types.h b/server/types.h
index 16d824b..0934bb1 100644
--- a/server/types.h
+++ b/server/types.h
@@ -1,6 +1,5 @@
 #ifndef _TYPES_H
 #define _TYPES_H
-#include <typeinfo>
 #include <cstdint>
 #include <type_traits>
 #include <string>
diff --git a/server/utils.cpp b/server/utils.cpp
deleted file mode 100644
index 1766c10..0000000
--- a/server/utils.cpp
+++ /dev/null
@@ -1,18 +0,0 @@
-#include "utils.h"
-#include <random>
-#include <chrono>
-using std::string;
-string base62uuid(int l = 8) {
-    using namespace std;
-    constexpr static const char* base62alp = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
-    static mt19937_64 engine(chrono::system_clock::now().time_since_epoch().count());
-    static uniform_int_distribution<uint64_t> u(0x10000, 0xfffff);
-    uint64_t uuid = (u(engine) << 32ull) + (chrono::system_clock::now().time_since_epoch().count() & 0xffffffff);
-    printf("%p\n", uuid);
-    string ret;
-    while (uuid && l-- >= 0) {
-        ret = string("") + base62alp[uuid % 62] + ret;
-        uuid /= 62;
-    }
-    return ret;
-}
\ No newline at end of file
diff --git a/server/vector_type.cpp b/server/vector_type.cpp
deleted file mode 100644
index 3cb23c1..0000000
--- a/server/vector_type.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-#include "vector_type.hpp"
-#include <iostream>
-template<typename _Ty>
-inline void vector_type<_Ty>::out(uint32_t n, const char* sep) const
-{
-	n = n > size ? size : n;
-	std::cout << '(';
-	{	
-		uint32_t i = 0;
-		for (; i < n - 1; ++i)
-			std::cout << this->operator[](i) << sep;
-		std::cout << this->operator[](i);
-	}
-	std::cout << ')';
-}
\ No newline at end of file
diff --git a/server/vector_type.hpp b/server/vector_type.hpp
index 54b9bcb..4f64c82 100644
--- a/server/vector_type.hpp
+++ b/server/vector_type.hpp
@@ -10,12 +10,7 @@
 #include <cstdlib>
 #include <cstdint>
 
-#include <algorithm>
 #include <initializer_list>
-#include <vector>
-#include <stdarg.h>
-#include <limits>
-#include <deque>
 #include "types.h"
 
 #pragma pack(push, 1)
diff --git a/test.aquery b/test.aquery
index 71f5b97..84e4bea 100644
Binary files a/test.aquery and b/test.aquery differ