From b090c194f363692b8d68bc749b03ea8050ce3b4d Mon Sep 17 00:00:00 2001
From: Yanxin Xiang <yanxinxiang0917@outlook.com>
Date: Sun, 18 Feb 2024 16:42:34 -0600
Subject: [PATCH] optimize code

---
 datafusion/core/src/datasource/listing/table.rs | 1 +
 datafusion/sql/src/planner.rs                   | 9 +++------
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/datafusion/core/src/datasource/listing/table.rs b/datafusion/core/src/datasource/listing/table.rs
index 3263489e530e4..094b26bfbd991 100644
--- a/datafusion/core/src/datasource/listing/table.rs
+++ b/datafusion/core/src/datasource/listing/table.rs
@@ -937,6 +937,7 @@ mod tests {
 
         Ok(())
     }
+
     #[cfg(feature = "parquet")]
     #[tokio::test]
     async fn load_table_stats_by_default() -> Result<()> {
diff --git a/datafusion/sql/src/planner.rs b/datafusion/sql/src/planner.rs
index 43bfc1467577b..bda4dd404ac95 100644
--- a/datafusion/sql/src/planner.rs
+++ b/datafusion/sql/src/planner.rs
@@ -502,16 +502,13 @@ pub fn object_name_to_table_reference(
     let ObjectName(idents) = object_name;
     idents_to_table_reference(idents, enable_normalization)
 }
-pub fn substitute_tilde(cur: String) -> String {
+fn substitute_tilde(cur: String) -> String {
     if let Ok(usr_dir) = env::var("HOME") {
         if cur.starts_with('~') {
-            cur.replacen('~', &usr_dir, 1)
-        } else {
-            cur
+            return cur.replacen('~', &usr_dir, 1);
         }
-    } else {
-        cur
     }
+    cur
 }
 /// Create a [`OwnedTableReference`] after normalizing the specified identifier
 pub(crate) fn idents_to_table_reference(