make ext_engine: duckdb to work

common/ast.py

@@ -229,6 +229,7 @@ class Context:
         self.removing_scan = False
 
     def __init__(self): 
+        from prompt import PromptState
         self.tables:list[TableInfo] = []
         self.tables_byname = dict()
         self.ccols_byname = dict()
@@ -252,6 +253,9 @@ class Context:
         self.ds_stack = []
         self.scans = []
         self.removing_scan = False
+        self.force_compiled = True
+        self.system_state: Optional[PromptState] = None
+        
     def add_table(self, table_name, cols):
         tbl = TableInfo(table_name, cols, self)
         self.tables.append(tbl)

common/types.py

@@ -31,7 +31,7 @@ class Types:
             self.name = name
             self.cname = defval(cname, name.lower() + '_t')
             self.sqlname = defval(sqlname, name.upper())
-            self.ctype_name = defval(ctype_name, f'types::{name.upper()}') 
+            self.ctype_name = defval(ctype_name, f'types::A{name.upper()}') 
             self.null_value = defval(null_value, 0)
             self.cast_to_dict = defval(cast_to, dict())
             self.cast_from_dict = defval(cast_from, dict())
@@ -102,7 +102,7 @@ LongT = Types(4, name = 'int64', sqlname = 'BIGINT', fp_type = DoubleT)
 BoolT = Types(0, name = 'bool', cname='bool', sqlname = 'BOOL', long_type=LongT, fp_type=FloatT)
 ByteT = Types(1, name = 'int8', sqlname = 'TINYINT', long_type=LongT, fp_type=FloatT)
 ShortT = Types(2, name = 'int16', sqlname='SMALLINT', long_type=LongT, fp_type=FloatT)
-IntT = Types(3, name = 'int', cname = 'int', long_type=LongT, fp_type=FloatT)
+IntT = Types(3, name = 'int', cname = 'int', long_type=LongT, ctype_name = 'types::AINT32', fp_type=FloatT)
 ULongT = Types(8, name = 'uint64', sqlname = 'UINT64', fp_type=DoubleT)
 UIntT = Types(7, name = 'uint32', sqlname = 'UINT32', long_type=ULongT, fp_type=FloatT)
 UShortT = Types(6, name = 'uint16', sqlname = 'UINT16', long_type=ULongT, fp_type=FloatT)