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tlocke · Sep 14, 2024 · e62f018 · e62f018
1 parent eb5eb7f
commit e62f018
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/README.md b/README.md
@@ -994,7 +994,7 @@ these additional parameters can be specified using the `startup_params` paramete
 ...    'postgres', password="cpsnow", startup_params={'IntervalStyle': 'sql_standard'})
 >>>
 >>> con.run("SHOW IntervalStyle")
-[['...', 1, '.../...', 'postgres']]
+[['sql_standard']]
 >>>
 >>> con.close()
 

diff --git a/src/pg8000/core.py b/src/pg8000/core.py
@@ -297,13 +297,15 @@ def __init__(
             "application_name": application_name,
             "replication": replication,
         }
-        common_params = init_params.keys() & startup_params
+        start_params = {} if startup_params is None else startup_params
+        common_params = init_params.keys() & start_params.keys()
+
         if len(common_params) > 0:
             raise InterfaceError(
                 "The parameters '{common_params}' can't appear in startup_params, they "
                 "must be set using keyword arguments."
             )
-        init_params.update(startup_params)
+        init_params.update(start_params)
 
         for k, v in tuple(init_params.items()):
             if isinstance(v, str):