feat: const aliases and read_xlsx alias

crates/sqlbuiltins/src/functions/mod.rs

@@ -81,6 +81,8 @@ pub trait ConstBuiltinFunction: Sync + Send {
     const DESCRIPTION: &'static str;
     const EXAMPLE: &'static str;
     const FUNCTION_TYPE: FunctionType;
+    const ALIASES: &'static [&'static str] = &[];
+
     fn signature(&self) -> Option<Signature> {
         None
     }
@@ -137,18 +139,26 @@ where
     fn name(&self) -> &str {
         Self::NAME
     }
+
     fn sql_example(&self) -> Option<&str> {
         Some(Self::EXAMPLE)
     }
+
     fn description(&self) -> Option<&str> {
         Some(Self::DESCRIPTION)
     }
+
     fn function_type(&self) -> FunctionType {
         Self::FUNCTION_TYPE
     }
+
     fn signature(&self) -> Option<Signature> {
         self.signature()
     }
+
+    fn aliases(&self) -> &[&str] {
+        Self::ALIASES
+    }
 }
 
 /// Builtin Functions available for all sessions.

crates/sqlbuiltins/src/functions/table/excel.rs

@@ -24,6 +24,8 @@ impl ConstBuiltinFunction for ExcelScan {
     const EXAMPLE: &'static str =
         "SELECT * FROM read_excel('file:///path/to/file.xlsx', sheet_name => 'Sheet1')";
     const FUNCTION_TYPE: FunctionType = FunctionType::TableReturning;
+    const ALIASES: &'static [&'static str] = &["read_xlsx"];
+
     fn signature(&self) -> Option<Signature> {
         let options: Fields = vec![
             Field::new("sheet_name", DataType::Utf8, true),

testdata/sqllogictests/xlsx.slt

@@ -17,12 +17,18 @@ select count(*) from read_excel('./testdata/xlsx/userdata1.xlsx', has_header =>
 ----
 1000
 
-query 1
+query I
 select count(*) from read_excel('./testdata/xlsx/userdata1.xlsx', has_header => false);
 ----
 1001
 
 
+query I
+select count(*) from read_xlsx('${PWD}/testdata/xlsx/userdata1.xlsx');
+----
+1000
+
+
 # infer rows
 statement ok
 select count(*) from read_excel(