@@ -250,6 +250,7 @@ iter_not_returning_iterator = "warn"
 iter_on_empty_collections = "warn"
 iter_on_single_items = "warn"
 iter_without_into_iter = "warn"
+large_digit_groups = "warn"
 # Detects large stack-allocated futures that may cause stack overflow crashes (see threshold in clippy.toml)
 large_futures = "warn"
 large_include_file = "warn"
 
@@ -173,6 +173,10 @@ mod tests {
     }
 
     #[test]
+    #[expect(
+        clippy::large_digit_groups,
+        reason = "The grouping spells out the decimal scale, e.g. 180_00000000 is 180 with scale 8"
+    )]
     fn test_decimal64_distinct_avg_accumulator() -> Result<()> {
         let precision = 10_u8;
         let scale = 4_i8;
@@ -202,6 +206,10 @@ mod tests {
     }
 
     #[test]
+    #[expect(
+        clippy::large_digit_groups,
+        reason = "The grouping spells out the decimal scale, e.g. 180_00000000 is 180 with scale 8"
+    )]
     fn test_decimal128_distinct_avg_accumulator() -> Result<()> {
         let precision = 10_u8;
         let scale = 4_i8;
@@ -231,6 +239,10 @@ mod tests {
     }
 
     #[test]
+    #[expect(
+        clippy::large_digit_groups,
+        reason = "The grouping spells out the decimal scale, e.g. 180_00000000 is 180 with scale 8"
+    )]
     fn test_decimal256_distinct_avg_accumulator() -> Result<()> {
         let precision = 50_u8;
         let scale = 2_i8;