imporved build driver, basic support for count()

build.py

@@ -21,7 +21,10 @@ class checksums:
                 server = 'server.so'
         ):
         from platform import machine
-        self.env = aquery_config.os_platform + machine() + aquery_config.build_driver
+        self.env = (aquery_config.os_platform +
+                    machine() + 
+                    aquery_config.build_driver
+                )
         for key in self.__dict__.keys():
             try:
                 with open(eval(key), 'rb') as file:
@@ -37,12 +40,13 @@ class checksums:
             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] and __o.__dict__[key] and
+                    not (self.__dict__[key] and __o.__dict__[key]) or
                     self.__dict__[key] != __o.__dict__[key]
                 )
             except KeyError:
@@ -54,7 +58,7 @@ class checksums:
         for key in self.__dict__.keys():
             try:
                 ret.__dict__[key] = (
-                    not (self.__dict__[key] and __o.__dict__[key]) or
+                    self.__dict__[key] and __o.__dict__[key] and
                     self.__dict__[key] == __o.__dict__[key]
                 )
             except KeyError:
@@ -82,16 +86,19 @@ class build_manager:
             self.mgr = mgr
             self.build_cmd = []
         def libaquery_a(self) :
-            pass
+            return False
         def pch(self):
-            pass
+            return False
         def build(self, stdout = sys.stdout, stderr = sys.stderr):
+            ret = True
             for c in self.build_cmd:
                 if c:
                     try:
-                        subprocess.call(c, stdout = stdout, stderr = stderr)
+                        ret = subprocess.call(c, stdout = stdout, stderr = stderr) and ret
                     except (FileNotFoundError):
+                        ret = False
                         pass
+            return ret
                 
     class MakefileDriver(DriverBase):
         def __init__(self, mgr : 'build_manager') -> None:
@@ -132,7 +139,7 @@ class build_manager:
             loc = os.path.abspath('./msc-plugin/libaquery.vcxproj')
             self.get_flags()
             self.build_cmd = [['del', 'libaquery.lib'], [aquery_config.msbuildroot, loc, self.opt, self.platform]]
-            self.build()
+            return self.build()
 
         def pch(self):
             pass
@@ -141,24 +148,17 @@ class build_manager:
             loc = os.path.abspath('./msc-plugin/server.vcxproj')
             self.get_flags()
             self.build_cmd = [['del', 'server.so'], [aquery_config.msbuildroot, loc, self.opt, self.platform]]
-            self.build()
+            return self.build()
 
         def snippet(self):
             loc = os.path.abspath('./msc-plugin/msc-plugin.vcxproj')
             self.get_flags()
             self.build_cmd = [[aquery_config.msbuildroot, loc, self.opt, self.platform]]
-            self.build()
+            return self.build()
 
     #class PythonDriver(DriverBase):
     #    def __init__(self, mgr : 'build_manager') -> None:
-    #        super().__init__(mgr)
-            
-    #@property
-    #def MSBuild(self):
-    #    return MSBuildDriver(self)
-    #@property
-    #def Makefile(self):
-    #    return MakefileDriver(self)
+    #        super().__init__(mgr)           
 
     def __init__(self) -> None:
         self.method = 'make'
@@ -181,7 +181,9 @@ class build_manager:
     def build_caches(self, force = False):
         cached = checksums()
         current = checksums()
-        libaquery_a = 'libaquery.lib' if aquery_config.os_platform else 'libaquery.a'
+        libaquery_a = 'libaquery.a' 
+        if aquery_config.os_platform == 'win':
+            libaquery_a = 'libaquery.lib'
         current.calc(libaquery_a)
         try:
             with open('.cached', 'rb') as cache_sig:
@@ -190,18 +192,25 @@ class build_manager:
             pass
         self.cache_status = current != cached
         
+        success = True
         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()
+                success = self.driver.libaquery_a() and success
             if self.cache_status.pch_hpp_gch:
-                self.driver.pch()
+                success = self.driver.pch() and success
             if self.cache_status.server:
-                self.driver.server()
-        current.calc(libaquery_a)
-        with open('.cached', 'wb') as cache_sig:
-            cache_sig.write(pickle.dumps(current))
+                success = self.driver.server() and success
+        if success:
+            current.calc(libaquery_a)
+            with open('.cached', 'wb') as cache_sig:
+                cache_sig.write(pickle.dumps(current))
+        else:
+            try:
+                os.remove('./.cached')
+            except:
+                pass
             

engine/types.py

@@ -1,5 +1,5 @@
 from copy import deepcopy
-from engine.utils import defval
+from engine.utils import base62uuid, defval
 from aquery_config import have_hge
 from typing import Dict, List
 
@@ -244,6 +244,14 @@ def fn_behavior(op:OperatorBase, c_code, *x):
     name = op.cname if c_code else op.sqlname
     return f'{name}({", ".join([f"{xx}" for xx in x])})'
 
+def count_behavior(op:OperatorBase, c_code, x, distinct = False):
+    if not c_code:
+        return f'{op.sqlname}({"distinct " if distinct else ""}{x})'
+    elif distinct:
+        return 'count_'+base62uuid()
+    else:
+        return '{count()}'
+
 def windowed_fn_behavor(op: OperatorBase, c_code, *x):
     if not c_code:
         return f'{op.sqlname}({", ".join([f"{xx}" for xx in x])})'
@@ -282,7 +290,7 @@ fnmaxs = OperatorBase('maxs', [1, 2], ty_clamp(as_is, -1), cname = 'maxs', sqlna
 fnmins = OperatorBase('mins', [1, 2], ty_clamp(as_is, -1), cname = 'mins', sqlname = 'MINS', call = windowed_fn_behavor)
 fnsums = OperatorBase('sums', [1, 2], ext(ty_clamp(auto_extension, -1)), cname = 'sums', sqlname = 'SUMS', call = windowed_fn_behavor)
 fnavgs = OperatorBase('avgs', [1, 2], fp(ext(ty_clamp(auto_extension, -1))), cname = 'avgs', sqlname = 'AVGS', call = windowed_fn_behavor)
-fncnt = OperatorBase('count', 1, int_return, cname = 'count', sqlname = 'COUNT', call = fn_behavior)
+fncnt = OperatorBase('count', 1, int_return, cname = 'count', sqlname = 'COUNT', call = count_behavior)
 # special
 def is_null_call_behavior(op:OperatorBase, c_code : bool, x : str):
     if c_code : 

prompt.py

@@ -479,6 +479,10 @@ def prompt(running = lambda:True, next = lambda:input('> '), state = None):
             print(e)
             continue
         except (ValueError, FileNotFoundError) as e:
+            try:
+                os.remove('./cached')
+            except:
+                pass
             print(e)
         except (KeyboardInterrupt):
             break

reconstruct/ast.py

@@ -223,12 +223,15 @@ class projection(ast_node):
             if type(val[1]) is str:
                 x = True
                 y = lambda t: self.pyname2cname[t]
-                val[1] = val[2].eval(x, y, gettype=True)
+                count = lambda : '0'
+                if vid2cname:
+                    count = lambda : f'{vid2cname[0]}.size'
+                val[1] = val[2].eval(x, y, count=count)
                 if callable(val[1]):
-                    val[1] = val[1](True)
-                decltypestring = val[1] 
+                    val[1] = val[1](False)
                 
             if val[0] == LazyT:
+                decltypestring = val[2].eval(x,y,gettype=True)(True)
                 decltypestring = f'value_type<decays<decltype({decltypestring})>>'
                 out_typenames[key] = decltypestring
             else:
@@ -461,7 +464,8 @@ class groupby_c(ast_node):
                 return get_var_names(sql_code)
             else:
                 return varex.eval(c_code=True, y = get_var_names, 
-                        materialize_builtin = materialize_builtin)
+                        materialize_builtin = materialize_builtin, 
+                        count=lambda:f'{val_var}.size')
                 
         for ce in cexprs:
             ex = ce[1]

reconstruct/expr.py

@@ -26,7 +26,13 @@ class expr(ast_node):
     
     def __init__(self, parent, node, *, c_code = None, supress_undefined = False):
         from reconstruct.ast import projection, udf
-        
+        # gen2 expr have multi-passes
+        # first pass parse json into expr tree
+        # generate target code in later passes upon need
+        self.children = []
+        self.opname = ''
+        self.curr_code = ''
+        self.counts = {}
         self.type = None
         self.raw_col = None
         self.udf : Optional[udf] = None
@@ -93,9 +99,15 @@ class expr(ast_node):
                             self.is_agg_func = True
                     
                     op = self.operators[key]
-
+                    count_distinct = False
+                    if key == 'count' and type(val) is dict and 'distinct' in val:
+                        count_distinct = True
+                        val = val['distinct']
                     val = enlist(val)
                     exp_vals = [expr(self, v, c_code = self.c_code) for v in val]
+                    self.children = exp_vals
+                    self.opname = key
+                    
                     str_vals = [e.sql for e in exp_vals]
                     type_vals = [e.type for e in exp_vals]
                     is_compound = any([e.is_compound for e in exp_vals])
@@ -112,7 +124,11 @@ class expr(ast_node):
                             pass
                         self.type = AnyT
                         
-                    self.sql = op(self.c_code, *str_vals)
+                    if count_distinct: # inject distinct col later
+                        self.sql = f'{{{op(self.c_code, *str_vals, True)}}}'
+                    else:
+                        self.sql = op(self.c_code, *str_vals)
+                        
                     special_func = [*self.context.udf_map.keys(), *self.context.module_map.keys(), 
                                     "maxs", "mins", "avgs", "sums", "deltas"]
                     if self.context.special_gb:
@@ -218,19 +234,23 @@ class expr(ast_node):
                     self.sql = self.raw_col.name
                     self.type = self.raw_col.type
                     self.is_compound = True
+                    self.opname = self.raw_col
                 else:
                     self.sql = node
                     self.type = StrT
+                    self.opname = node
                 if self.c_code and self.datasource is not None:
                     self.sql = f'{{y(\"{self.sql}\")}}'
         elif type(node) is bool:
             self.type = BoolT
+            self.opname = node
             if self.c_code:
                 self.sql = '1' if node else '0'
             else:
                 self.sql = 'TRUE' if node else 'FALSE'
         else:
             self.sql = f'{node}'
+            self.opname = node
             if type(node) is int:
                 if (node >= 2**63 - 1 or node <= -2**63):
                     self.type = LongT
@@ -252,6 +272,12 @@ class expr(ast_node):
                     self.codebuf += c.finalize(override=override)
         return self.codebuf
 
+    def codegen(self, delegate):
+        self.curr_code = ''
+        for c in self.children:
+            self.curr_code += c.codegen(delegate)
+        return self.curr_code
+    
     def __str__(self):
         return self.sql
     def __repr__(self):
@@ -259,10 +285,17 @@ class expr(ast_node):
     
     # builtins is readonly, so it's okay to set default value as an object
     # eval is only called at root expr.
-    def eval(self, c_code = None, y = lambda t: t, materialize_builtin = False, _decltypestr = False, *, gettype = False):
+    def eval(self, c_code = None, y = lambda t: t, 
+             materialize_builtin = False, _decltypestr = False, 
+             count = lambda : 'count', var_inject = None, 
+             *, 
+             gettype = False):
         assert(self.is_root)
         def call(decltypestr = False) -> str:
-            nonlocal c_code, y, materialize_builtin
+            nonlocal c_code, y, materialize_builtin, count, var_inject
+            if var_inject:
+                for k, v in var_inject.items():
+                    locals()[k] = v
             if self.udf_called is not None:
                 loc = locals()
                 builtin_vars = self.udf_called.builtin_used

server/aggregations.h

@@ -16,8 +16,8 @@ constexpr static inline size_t count(const T&) { return 1; }
 
 // TODO: Specializations for dt/str/none
 template<class T, template<typename ...> class VT>
-// types::GetLongType<T> 
-LL_Type sum(const VT<T>& v) {
+types::GetLongType<T> 
+sum(const VT<T>& v) {
 	types::GetLongType<T> ret = 0;
 	for (const auto& _v : v)
 		ret += _v;

server/server.cpp

@@ -100,10 +100,10 @@ void Context::end_session(){
 void* Context::get_module_function(const char* fname){
     auto fmap = static_cast<std::unordered_map<std::string, void*>*>
         (this->module_function_maps);
-    printf("%p\n", fmap->find("mydiv")->second);
-     for (const auto& [key, value] : *fmap){
-         printf("%s %p\n", key.c_str(), value);
-     }
+    // printf("%p\n", fmap->find("mydiv")->second);
+    //  for (const auto& [key, value] : *fmap){
+    //      printf("%s %p\n", key.c_str(), value);
+    //  }
     auto ret = fmap->find(fname);
     return ret == fmap->end() ? nullptr : ret->second;
 }
@@ -188,9 +188,9 @@ int dll_main(int argc, char** argv, Context* cxt){
                         case 'F': // Register Function in Module
                             {
                                 auto fname = n_recvd[i] + 1;
-                                printf("F:: %s: %p, %p\n", fname, user_module_handle, dlsym(user_module_handle, fname));
+                                //printf("F:: %s: %p, %p\n", fname, user_module_handle, dlsym(user_module_handle, fname));
                                 module_fn_map->insert_or_assign(fname, dlsym(user_module_handle, fname));
-                                printf("F::: %p\n", module_fn_map->find("mydiv") != module_fn_map->end() ? module_fn_map->find("mydiv")->second : nullptr);
+                                //printf("F::: %p\n", module_fn_map->find("mydiv") != module_fn_map->end() ? module_fn_map->find("mydiv")->second : nullptr);
                             }
                             break;
                         case 'U': // Unload Module

tests/network.a

@@ -5,7 +5,7 @@ LOAD DATA INFILE "data/network.csv"
 INTO TABLE network
 FIELDS TERMINATED BY ","
 
-SELECT	 src, dst, avg(len)
+SELECT	 src, dst, count(*), avg(len)
 FROM	 network
 	     ASSUMING ASC src, ASC dst, ASC _time 
 GROUP BY src, dst, sums (deltas(_time) > 120)