From e25202b3f77e4632e4893ffb105f9ebc1b0c9d12 Mon Sep 17 00:00:00 2001
From: Andrew Lamb <andrew@nerdnetworks.org>
Date: Wed, 23 Nov 2022 13:56:59 -0500
Subject: [PATCH] minor: improve optimizer logging and do not repeat rule name

---
 datafusion/optimizer/src/optimizer.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/datafusion/optimizer/src/optimizer.rs b/datafusion/optimizer/src/optimizer.rs
index 1dfd1034668c..79b35e61b3ce 100644
--- a/datafusion/optimizer/src/optimizer.rs
+++ b/datafusion/optimizer/src/optimizer.rs
@@ -239,7 +239,11 @@ impl Optimizer {
                     }
                     Ok(None) => {
                         observer(&new_plan, rule.as_ref());
-                        log_plan(rule.name(), &new_plan);
+                        debug!(
+                            "Plan unchanged by optimizer rule '{}' (pass {})",
+                            rule.name(),
+                            i
+                        );
                     }
                     Err(ref e) => {
                         if optimizer_config.skip_failing_rules {