Return actual bytes instead of list of ints for BYTEA type

Signed-off-by: chandr-andr (Kiselev Aleksandr) <chandr@chandr.net>

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "psqlpy"
-version = "0.8.2"
+version = "0.8.3"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

python/tests/test_value_converter.py

@@ -103,7 +103,7 @@ async def test_as_class(
 @pytest.mark.parametrize(
     ["postgres_type", "py_value", "expected_deserialized"],
     (
-        ("BYTEA", b"Bytes", [66, 121, 116, 101, 115]),
+        ("BYTEA", b"Bytes", b"Bytes"),
         ("VARCHAR", "Some String", "Some String"),
         ("TEXT", "Some String", "Some String"),
         (
@@ -829,7 +829,7 @@ class ValidateModelForInnerValueType(BaseModel):
         some_enum: TestEnum
 
     class ValidateModelForCustomType(BaseModel):
-        bytea_: List[int]
+        bytea_: bytes
         varchar_: str
         text_: str
         bool_: bool

src/value_converter.rs

@@ -1314,10 +1314,15 @@ fn postgres_bytes_to_py(
     match *type_ {
         // ---------- Bytes Types ----------
         // Convert BYTEA type into Vector<u8>, then into PyBytes
-        Type::BYTEA => Ok(_composite_field_postgres_to_py::<Option<Vec<u8>>>(
-            type_, buf, is_simple,
-        )?
-        .to_object(py)),
+        Type::BYTEA => {
+            let vec_of_bytes = _composite_field_postgres_to_py::<Option<Vec<u8>>>(
+                type_, buf, is_simple,
+            )?;
+            if let Some(vec_of_bytes) = vec_of_bytes {
+                return Ok(PyBytes::new_bound(py, &vec_of_bytes).to_object(py));
+            }
+            Ok(py.None())
+        },
         // // ---------- String Types ----------
         // // Convert TEXT and VARCHAR type into String, then into str
         Type::TEXT | Type::VARCHAR | Type::XML => Ok(_composite_field_postgres_to_py::<Option<String>>(