add dialect to compilation of sqlalchemy clauses

orm/__init__.py

@@ -3,6 +3,7 @@ from orm.fields import Integer, BigInteger, Boolean, Time, Text, String, JSON, D
 from orm.models import Model
 from orm.exceptions import ModelDefinitionError, MultipleMatches, NoMatch, ModelNotSet
 
+__version__ = "0.0.1"
 __all__ = [
     "Integer",
     "BigInteger",

orm/models.py

@@ -5,6 +5,7 @@ import uuid
 from typing import Any, List, Type, TYPE_CHECKING, Optional, TypeVar, Tuple
 from typing import Set, Dict
 
+import databases
 import pydantic
 import sqlalchemy
 from pydantic import BaseModel, BaseConfig, create_model
@@ -107,6 +108,9 @@ class Model(list, metaclass=ModelMetaclass):
         __fields__: Dict[str, pydantic.fields.ModelField]
         __pydantic_model__: Type[BaseModel]
         __pkname__: str
+        __tablename__: str
+        __metadata__: sqlalchemy.MetaData
+        __database__: databases.Database
         _orm_relationship_manager: RelationshipManager
 
     objects = qry.QuerySet()

orm/queryset.py

@@ -262,7 +262,8 @@ class QuerySet:
             clause = getattr(column, op_attr)(value)
             clause.modifiers['escape'] = '\\' if has_escaped_character else None
 
-            clause_text = str(clause.compile(compile_kwargs={"literal_binds": True}))
+            clause_text = str(clause.compile(dialect=self.model_cls.__database__._backend._dialect,
+                                             compile_kwargs={"literal_binds": True}))
             alias = f'{table_prefix}_' if table_prefix else ''
             aliased_name = f'{alias}{table.name}.{column.name}'
             clause_text = clause_text.replace(f'{table.name}.{column.name}', aliased_name)