Added comment to remember what the array structure is

diff --git a/psycopg3/psycopg3/types/array.py b/psycopg3/psycopg3/types/array.py
index d9b6fa616892eb121bbc2ec65646e0afcc511306..e7bda5d797d77a41c5b3da436281a3ca3b6c7358 100644 (file)
--- a/psycopg3/psycopg3/types/array.py
+++ b/psycopg3/psycopg3/types/array.py
@@ -226,8 +226,8 @@ class ArrayLoader(BaseArrayLoader):
     _re_unescape = re.compile(br"\\(.)")
 
 
-_struct_head = struct.Struct("!III")
-_struct_dim = struct.Struct("!II")
+_struct_head = struct.Struct("!III")  # ndims, hasnull, elem oid
+_struct_dim = struct.Struct("!II")  # dim, lower bound
 _struct_len = struct.Struct("!i")