chore: update some comments

Author: sunng87

datafusion-postgres-cli/src/main.rs

@@ -199,6 +199,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let session_config = SessionConfig::new().with_information_schema(true);
     let session_context = SessionContext::new_with_config(session_config);
 
+    // TODO: remove or replace AuthManager for pg_catalog
     let auth_manager = Arc::new(AuthManager::new());
     setup_session_context(&session_context, &opts, Arc::clone(&auth_manager)).await?;
 

datafusion-postgres/src/handlers.rs

@@ -31,7 +31,6 @@ use arrow_pg::datatypes::{arrow_schema_to_pg_fields, into_pg_type};
 use datafusion_pg_catalog::sql::PostgresCompatibilityParser;
 
 /// Simple startup handler that does no authentication
-/// For production, use DfAuthSource with proper pgwire authentication handlers
 pub struct SimpleStartupHandler;
 
 #[async_trait::async_trait]