Decrease DB load by not storing full payload with anchor leaf

sequencer/src/persistence/sql.rs

@@ -338,8 +338,15 @@ impl SequencerPersistence for Persistence {
         let values = leaf_chain
             .into_iter()
             .map(|(info, qc)| {
+                // The leaf may come with a large payload attached. We don't care about this payload
+                // because we already store it separately, as part of the DA proposal. Storing it
+                // here contributes to load on the DB for no reason, so we remove it before
+                // serializing the leaf.
+                let mut leaf = info.leaf.clone();
+                leaf.unfill_block_payload();
+
                 let view = qc.view_number.u64() as i64;
-                let leaf_bytes = bincode::serialize(&info.leaf)?;
+                let leaf_bytes = bincode::serialize(&leaf)?;
                 let qc_bytes = bincode::serialize(&qc)?;
                 Ok((view, leaf_bytes, qc_bytes))
             })