Accept parsing SET statements with repeated names, like `.. SET (a, a) =

(1, 2)`

vendored/sqlite3-parser/src/parser/ast/mod.rs

@@ -1292,6 +1292,39 @@ impl QualifiedName {
     }
 }
 
+/// Ordered set of column names
+#[derive(Clone, Debug, PartialEq, Eq)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
+pub struct Names(Vec<Name>);
+
+impl Names {
+    /// Initialize
+    pub fn new(name: Name) -> Self {
+        let mut dn = Self(Vec::new());
+        dn.0.push(name);
+        dn
+    }
+    /// Single column name
+    pub fn single(name: Name) -> Self {
+        let mut dn = Self(Vec::with_capacity(1));
+        dn.0.push(name);
+        dn
+    }
+    /// Push name
+    pub fn insert(&mut self, name: Name) -> Result<(), ParserError> {
+        self.0.push(name);
+        Ok(())
+    }
+}
+
+impl Deref for Names {
+    type Target = Vec<Name>;
+
+    fn deref(&self) -> &Vec<Name> {
+        &self.0
+    }
+}
+
 /// Ordered set of distinct column names
 #[derive(Clone, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
@@ -1319,6 +1352,7 @@ impl DistinctNames {
         Ok(())
     }
 }
+
 impl Deref for DistinctNames {
     type Target = IndexSet<Name>;
 
@@ -1735,7 +1769,7 @@ pub enum InsertBody {
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct Set {
     /// column name(s)
-    pub col_names: DistinctNames,
+    pub col_names: Names,
     /// expression
     pub expr: Expr,
 }