From dbd85316ad60a01755df740dca0ec6428446f6d9 Mon Sep 17 00:00:00 2001
From: Edmondo Porcu <edmondo.porcu@gmail.com>
Date: Wed, 28 Aug 2024 17:39:39 +0000
Subject: [PATCH] Adding alias to custom udf

---
 datafusion/proto/tests/cases/mod.rs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/datafusion/proto/tests/cases/mod.rs b/datafusion/proto/tests/cases/mod.rs
index 1f837b7f42e8..fbb2cd8f1e83 100644
--- a/datafusion/proto/tests/cases/mod.rs
+++ b/datafusion/proto/tests/cases/mod.rs
@@ -34,12 +34,17 @@ struct MyRegexUdf {
     signature: Signature,
     // regex as original string
     pattern: String,
+    aliases: Vec<String>,
 }
 
 impl MyRegexUdf {
     fn new(pattern: String) -> Self {
         let signature = Signature::exact(vec![DataType::Utf8], Volatility::Immutable);
-        Self { signature, pattern }
+        Self {
+            signature,
+            pattern,
+            aliases: vec!["aggregate_udf_alias".to_string()],
+        }
     }
 }
 
@@ -67,6 +72,9 @@ impl ScalarUDFImpl for MyRegexUdf {
     ) -> datafusion_common::Result<ColumnarValue> {
         unimplemented!()
     }
+    fn aliases(&self) -> &[String] {
+        &self.aliases
+    }
 }
 
 #[derive(Clone, PartialEq, ::prost::Message)]