diff --git a/crates/core/src/db/datastore/locking_tx_datastore/mut_tx.rs b/crates/core/src/db/datastore/locking_tx_datastore/mut_tx.rs
index e44cfd13af..54c5c2080a 100644
--- a/crates/core/src/db/datastore/locking_tx_datastore/mut_tx.rs
+++ b/crates/core/src/db/datastore/locking_tx_datastore/mut_tx.rs
@@ -1261,7 +1261,8 @@ impl MutTxId {
                     }
 
                     // Pacify the borrow checker.
-                    // SAFETY: `ptr` came from `tx_table.insert` just now without any interleaving calls.
+                    // SAFETY: `tx_row_ptr` came from `tx_table.insert` just now
+                    // without any interleaving `&mut` calls that could invalidate the pointer.
                     let tx_row_ref = unsafe { tx_table.get_row_ref_unchecked(tx_blob_store, tx_row_ptr) };
 
                     // (2) The `tx_row_ref` did not violate a unique constraint *within* the `tx_table`,
diff --git a/crates/table/src/btree_index.rs b/crates/table/src/btree_index.rs
index 2bc00574c8..96e62bf42b 100644
--- a/crates/table/src/btree_index.rs
+++ b/crates/table/src/btree_index.rs
@@ -202,7 +202,9 @@ impl TypedIndex {
     /// or may insert a nonsense value into the index.
     /// Note, however, that it will not invoke undefined behavior.
     ///
-    /// Assumes that this is a unique constraint and returns `Ok(Some(existing_row))` if it's violated.
+    /// Assumes that this is a unique constraint
+    /// and returns `Ok(Some(existing_row))` if it's violated.
+    /// The index is not inserted to in that case.
     fn insert_unique(&mut self, cols: &ColList, row_ref: RowRef<'_>) -> Result<Option<RowPointer>, InvalidFieldError> {
         fn insert_at_type<T: Ord + ReadColumn>(
             this: &mut Index<T>,