chore: add comments

GreptimeTeam · Jan 22, 2025 · 3628e54 · 3628e54
1 parent 5b9aaa2
commit 3628e54
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/mito2/src/memtable/partition_tree/tree.rs b/src/mito2/src/memtable/partition_tree/tree.rs
@@ -97,6 +97,7 @@ impl PartitionTree {
     }
 
     fn verify_primary_key_length(&self, kv: &KeyValue) -> Result<()> {
+        // The sparse primary key codec does not have a fixed number of fields.
         if let Some(expected_num_fields) = self.row_codec.num_fields() {
             ensure!(
                 expected_num_fields == kv.num_primary_keys(),
@@ -106,6 +107,7 @@ impl PartitionTree {
                 }
             );
         }
+        // TODO(weny): verify the primary key length for sparse primary key codec.
         Ok(())
     }