update readme

README.md

@@ -128,7 +128,7 @@ Cachew gives the best of two worlds and makes it both **easy and efficient**. Th
 - first your objects get [converted](src/cachew/marshall/cachew.py#L34) into a simpler JSON-like representation 
 - after that, they are mapped into byte blobs via [`orjson`](https://github.com/ijl/orjson).
 
-When the function is called, cachew [computes the hash of your function's arguments ](src/cachew/__init__.py:#L503)
+When the function is called, cachew [computes the hash of your function's arguments ](src/cachew/__init__.py:#L504)
 and compares it against the previously stored hash value.
 
 - If they match, it would deserialize and yield whatever is stored in the cache database
@@ -140,18 +140,18 @@ and compares it against the previously stored hash value.
 
 
 
-* automatic schema inference: [1](src/cachew/tests/test_cachew.py#L349), [2](src/cachew/tests/test_cachew.py#L363)
+* automatic schema inference: [1](src/cachew/tests/test_cachew.py#L350), [2](src/cachew/tests/test_cachew.py#L364)
 * supported types:    
 
     * primitive: `str`, `int`, `float`, `bool`, `datetime`, `date`, `Exception`
 
-      See [tests.test_types](src/cachew/tests/test_cachew.py#L675), [tests.test_primitive](src/cachew/tests/test_cachew.py#L709), [tests.test_dates](src/cachew/tests/test_cachew.py#L629), [tests.test_exceptions](src/cachew/tests/test_cachew.py#L1036)
-    * [@dataclass and NamedTuple](src/cachew/tests/test_cachew.py#L591)
-    * [Optional](src/cachew/tests/test_cachew.py#L493) types
-    * [Union](src/cachew/tests/test_cachew.py#L787) types
-    * [nested datatypes](src/cachew/tests/test_cachew.py#L409)
+      See [tests.test_types](src/cachew/tests/test_cachew.py#L676), [tests.test_primitive](src/cachew/tests/test_cachew.py#L710), [tests.test_dates](src/cachew/tests/test_cachew.py#L630), [tests.test_exceptions](src/cachew/tests/test_cachew.py#L1037)
+    * [@dataclass and NamedTuple](src/cachew/tests/test_cachew.py#L592)
+    * [Optional](src/cachew/tests/test_cachew.py#L494) types
+    * [Union](src/cachew/tests/test_cachew.py#L788) types
+    * [nested datatypes](src/cachew/tests/test_cachew.py#L410)
 
-* detects [datatype schema changes](src/cachew/tests/test_cachew.py#L439) and discards old data automatically
+* detects [datatype schema changes](src/cachew/tests/test_cachew.py#L440) and discards old data automatically
 
 
 # Performance
@@ -165,12 +165,12 @@ You can find some of my performance tests in [benchmarks/](benchmarks) dir, and
 
 
 # Using
-See [docstring](src/cachew/__init__.py#L328) for up-to-date documentation on parameters and return types. 
+See [docstring](src/cachew/__init__.py#L329) for up-to-date documentation on parameters and return types. 
 You can also use [extensive unit tests](src/cachew/tests/test_cachew.py) as a reference.
 
 Some useful (but optional) arguments of `@cachew` decorator:
 
-* `cache_path` can be a directory, or a callable that [returns a path](src/cachew/tests/test_cachew.py#L386) and depends on function's arguments.
+* `cache_path` can be a directory, or a callable that [returns a path](src/cachew/tests/test_cachew.py#L387) and depends on function's arguments.
 
    By default, `settings.DEFAULT_CACHEW_DIR` is used.
 
@@ -264,7 +264,7 @@ Now you can use `@mcachew` in place of `@cachew`, and be certain things don't br
 ## Settings
 
 
-[cachew.settings](src/cachew/__init__.py#L67) exposes some parameters that allow you to control `cachew` behaviour:
+[cachew.settings](src/cachew/__init__.py#L68) exposes some parameters that allow you to control `cachew` behaviour:
 - `ENABLE`: set to `False` if you want to disable caching for without removing the decorators (useful for testing and debugging).
    You can also use [cachew.extra.disabled_cachew](src/cachew/extra.py#L18) context manager to do it temporarily.
 - `DEFAULT_CACHEW_DIR`: override to set a different base directory. The default is the "user cache directory" (see [appdirs docs](https://github.com/ActiveState/appdirs#some-example-output)).

src/cachew/__init__.py

@@ -640,6 +640,7 @@ def cached_items():
                 # - ._generate_rows
                 # - ._row_getter
                 # by using this raw iterator we speed up reading the cache quite a bit
+                # asked here https://github.com/sqlalchemy/sqlalchemy/discussions/10350
                 raw_row_iterator = getattr(rows, '_raw_row_iterator', None)
                 if raw_row_iterator is None:
                     warnings.warn(