From dcda1b87e9b0071111aa16ab174f1394aaa47ecd Mon Sep 17 00:00:00 2001
From: Cheng-Yuan-Lai <a186235@g,ail.com>
Date: Sun, 29 Dec 2024 17:04:35 +0800
Subject: [PATCH] fix: fix typo and update function docs

---
 datafusion/functions/src/string/chr.rs         | 2 +-
 docs/source/user-guide/sql/scalar_functions.md | 4 ----
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/datafusion/functions/src/string/chr.rs b/datafusion/functions/src/string/chr.rs
index 811463ba0ab82..3530e3f22c0f7 100644
--- a/datafusion/functions/src/string/chr.rs
+++ b/datafusion/functions/src/string/chr.rs
@@ -72,7 +72,7 @@ pub fn chr(args: &[ArrayRef]) -> Result<ArrayRef> {
 | 🚀                 |
 +--------------------+ 
 ```"#,
-    standard_argument(name = "str", prefix = "String"),
+    standard_argument(name = "expression", prefix = "String"),
     related_udf(name = "ascii")
 )]
 #[derive(Debug)]
diff --git a/docs/source/user-guide/sql/scalar_functions.md b/docs/source/user-guide/sql/scalar_functions.md
index be4f5e56b3af3..7e2f824786242 100644
--- a/docs/source/user-guide/sql/scalar_functions.md
+++ b/docs/source/user-guide/sql/scalar_functions.md
@@ -852,10 +852,6 @@ btrim(str[, trim_str])
 
 #### Alternative Syntax
 
-```sql
-trim(BOTH trim_str FROM str)
-```
-
 ```sql
 trim(trim_str FROM str)
 ```