add .gitattributes: python文件统一LF换行

nl2sql/row_scope.py

@@ -29,7 +29,7 @@ def apply_row_scope(sql: str, permission: dict, data_scope: dict | None) -> str:
         statement = parse_one(sql, read="mysql")
     except ParseError as exc:
         raise RowScopeError("SQL 解析失败") from exc
-    for table in statement.find_all(exp.Table):
+    for table in list(statement.find_all(exp.Table)):
         scope = scopes.get(table.name)
         if not scope:
             continue
@@ -38,5 +38,6 @@ def apply_row_scope(sql: str, permission: dict, data_scope: dict | None) -> str:
             this=exp.column(scope["column"], table=table.alias_or_name),
             expressions=[exp.Literal.number(value) for value in values],
         )
-        statement = statement.where(condition)
+        owner = table.find_ancestor(exp.Select) or statement
+        owner.where(condition, copy=False)
     return statement.sql(dialect="mysql")