diff --git a/src/entity/column.rs b/src/entity/column.rs
index 599d87d70..491c6b154 100644
--- a/src/entity/column.rs
+++ b/src/entity/column.rs
@@ -403,6 +403,11 @@ impl ColumnDef {
     pub fn is_null(&self) -> bool {
         self.null
     }
+
+    /// Returns true if the column is unique
+    pub fn is_unique(&self) -> bool {
+        self.unique
+    }
 }
 
 struct Text;