bug fixes

README.md

@@ -4,7 +4,7 @@
 
 AQuery++ Database is a cross-platform, In-Memory Column-Store Database that incorporates compiled query execution. (**Note**: If you encounter any problems, feel free to contact me via ys3540@nyu.edu)
 
-## Docker (Recommended): 
+`## Docker (Recommended): 
    - See installation instructions from [docker.com](https://www.docker.com). Run **docker desktop** to start docker engine.
    - In AQuery root directory, type `make docker` to build the docker image from scratch. 
    - For Arm-based Mac users, you would have to build and run the **x86_64** docker image because MonetDB doesn't offer official binaries for arm64 Linux. (Run `docker buildx build --platform=linux/amd64 -t aquery .` instead of `make docker`)
@@ -57,12 +57,11 @@ There're multiple options to run AQuery on Windows. But for better consistency I
   - Copy or link `mingw64/libexec/gcc/<arch>/<version>/liblto-plugin.dll` to `mingw64/lib/bfd-plugins/` For Link time optimization support on gcc-ar and gcc-ranlib 
   
 - For Visual Studio: 
-1. Install python3.6 or above from [official website](https://www.python.org/downloads/windows/) or Microsoft Store.
-  1. Install Microsoft Visual Studio 2022 or later with **Desktop development with C++** selected.
-  2. Clone AQuery repo from [Github](https://github.com/sunyinqi0508/AQuery2)
-  3. Install python requirements with pip `python3 -m pip install -r requirements.txt`
-  4. Change the build_driver variable in aquery_config.py to "MSBuild"
-  5. The libraries and headers for Monetdb are already included in msc-plugins, however you can also choose to download them from [Monetdb Easy Setup](https://www.monetdb.org/easy-setup/) and put them in the same place.
+    1. Install python3.6 or above from [official website](https://www.python.org/downloads/windows/) or Microsoft Store.
+    2. Install Microsoft Visual Studio 2022 or later with **Desktop development with C++** selected.
+    3. Clone AQuery repo from [Github](https://github.com/sunyinqi0508/AQuery2)
+    4. Install python requirements with pip `python3 -m pip install -r requirements.txt`
+    5. The libraries and headers for Monetdb are already included in msc-plugins, however you can also choose to download them from [Monetdb Easy Setup](https://www.monetdb.org/easy-setup/) and put them in the same place.
 
 - For CygWin/MinGW:
    1. Install gcc and python3 using its **builtin package manager** instead of the one from python.org or windows store. (For Msys2, `pacman -S gcc python3`). Otherwise, ABI breakage may happen.

prompt.py

@@ -401,6 +401,15 @@ def prompt(running = lambda:True, next = lambda:input('> '), state = None):
             elif q.startswith('echo '):
                 print(og_q[5:].lstrip())
                 continue
+            elif q.startswith('list '):
+                qs = re.split(r'[ \t]', q)
+                if len(qs) > 1 and qs[1].startswith('table'):
+                    for t in cxt.tables:
+                        lst_cols = []
+                        for c in t.columns:
+                            lst_cols.append(f'{c.name} : {c.type}')
+                        print(f'{t.table_name} ({", ".join(lst_cols)})')
+                continue
             elif q.startswith('help'):
                 qs = re.split(r'[ \t]', q)
                 if len(qs) > 1 and qs[1].startswith('c'):
@@ -511,12 +520,18 @@ def prompt(running = lambda:True, next = lambda:input('> '), state = None):
                 with open(qs) as file:
                     qs = file.readline()
                     from engine.utils import _Counter
+                    lst_tell = -1
                     while(qs):
                         while(not ws.sub('', qs) or qs.strip().startswith('#')):
                             qs = file.readline()
+                            if lst_tell == file.tell():
+                                break
+                            else:
+                                lst_tell = file.tell()
                         cnt = _Counter(1)
                         prompt(lambda : cnt.inc(-1) > 0, lambda:qs.strip(), state)
                         qs = file.readline()
+                continue
             elif q.startswith('save2'):
                 filename = re.split(r'[ \t]', q)
                 if (len(filename) > 1):

reconstruct/ast.py

@@ -882,10 +882,11 @@ class drop(ast_node):
             for a in tbl_obj.alias:
                 self.context.tables_byname.pop(a, None) 
             # TODO: delete in postproc engine
-            self.context.tables_byname.pop(tbl_name)
-            self.context.tables.remove(tbl_obj)
+            self.context.tables_byname.pop(tbl_name, None)
+            self.context.tables.discard(tbl_obj)
             self.sql += 'TABLE IF EXISTS ' + tbl_name
             return
+        
         elif 'if_exists' not in node or not node['if_exists']:
             print(f'Error: table {tbl_name} not found.')
         self.sql = ''

reconstruct/expr.py

@@ -307,9 +307,15 @@ class expr(ast_node):
             self.opname = node
             if type(node) is int:
                 if (node >= 2**63 - 1 or node <= -2**63):
+                    self.type = HgeT
+                elif (node >= 2**31 - 1 or node <= -2**31):
                     self.type = LongT
-                else:
+                elif node >= 2**15 - 1 or node <= -2**15:
                     self.type = IntT
+                elif node >= 2**7 - 1 or node <= -2**7:
+                    self.type = ShortT
+                else:
+                    self.type = ByteT
             elif type(node) is float:
                 self.type = DoubleT
     

reconstruct/storage.py

@@ -67,7 +67,8 @@ class TableInfo:
         self.order = [] # assumptions
 
         cxt.tables_byname[self.table_name] = self # construct reverse map
-
+        cxt.tables.add(self)
+        
     def add_cols(self, cols, new = True):
         for c in enlist(cols):
             self.add_col(c, new)
@@ -137,7 +138,7 @@ class Context:
     def __init__(self):
         self.tables_byname = dict()
         self.col_byname = dict()
-        self.tables : List[TableInfo] = []
+        self.tables : Set[TableInfo] = set()
         self.cols = []
         self.datasource = None
         self.module_stubs = ''
@@ -166,7 +167,7 @@ class Context:
         self.ccode += c + '\n'    
     def add_table(self, table_name, cols):
         tbl = TableInfo(table_name, cols, self)
-        self.tables.append(tbl)
+        self.tables.add(tbl)
         return tbl
     def remove_scan(self, scan, str_scan):
         self.emitc(str_scan)

server/types.h

@@ -21,7 +21,27 @@ template <class T>
 struct is_vector_impl : std::false_type {};
 template <class T>
 constexpr static bool is_vector_type = is_vector_impl<T>::value;
+#define Cond(c, x, y) typename std::conditional<c, x, y>::type
+template <class T1, class T2>
+struct aqis_same_impl {
+	constexpr static bool value = 
+		std::conditional_t<
+			std::is_signed_v<T1> == std::is_signed_v<T2>,
+			Cond(
+				std::is_floating_point_v<T1> == std::is_floating_point_v<T2>,
+				Cond(
+					sizeof(T1) == sizeof(T2),
+					std::true_type,
+					std::false_type
+				),
+				std::false_type
+			),
+			std::false_type
+		>::value;
+};
 
+template <class T1, class T2>
+constexpr bool aqis_same = aqis_same_impl<T1, T2>::value;
 namespace types {
 	enum Type_t {
 		AINT32, AFLOAT, ASTR, ADOUBLE, ALDOUBLE, AINT64, AINT128, AINT16, ADATE, ATIME, AINT8,
@@ -124,17 +144,17 @@ namespace types {
 		f(short, AINT16) \
 		f(date_t, ADATE) \
 		f(time_t, ATIME) \
-		f(unsigned char, AINT8) \
+		f(unsigned char, AUINT8) \
+		f(char, AINT8) \
 		f(unsigned int, AUINT32) \
 		f(unsigned long, AUINT64) \
 		f(unsigned short, AUINT16) \
-		f(unsigned char, AUINT8) \
 		f(bool, ABOOL) \
 		f(timestamp_t, ATIMESTAMP) \
 		F_INT128(f)
 
 		inline constexpr static Type_t getType() {
-#define	TypeConnect(x, y) if constexpr(std::is_same<x, T>::value) return y; else
+#define	TypeConnect(x, y) if constexpr(aqis_same<x, T>) return y; else
 			ConnectTypes(TypeConnect)
 				if constexpr (is_vector_type<T>)
 					return VECTOR;
@@ -144,7 +164,6 @@ namespace types {
 	};
 #define ATypeSize(t, at) sizeof(t),
 	static constexpr size_t AType_sizes[] = { ConnectTypes(ATypeSize) 1 };
-#define Cond(c, x, y) typename std::conditional<c, x, y>::type
 #define Comp(o) (sizeof(T1) o sizeof(T2))
 #define Same(x, y) (std::is_same_v<x, y>)
 #define __U(x) std::is_unsigned<x>::value
@@ -297,26 +316,7 @@ template <class T>
 using decays = typename decayS<typename std::decay<T>::type>::type;
 template <class T>
 using decay_inner = typename decayS<T>::type;
-template <class T1, class T2>
-struct aqis_same_impl {
-	constexpr static bool value = 
-		std::conditional_t<
-			std::is_signed_v<T1> == std::is_signed_v<T2>,
-			Cond(
-				std::is_floating_point_v<T1> == std::is_floating_point_v<T2>,
-				Cond(
-					sizeof(T1) == sizeof(T2),
-					std::true_type,
-					std::false_type
-				),
-				std::false_type
-			),
-			std::false_type
-		>::value;
-};
 
-template <class T1, class T2>
-constexpr bool aqis_same = aqis_same_impl<T1, T2>::value;
 
 template <class, template <class...> class T>
 struct instance_of_impl : std::false_type {};