Only delete once by checking the primary-index range

ledger/src/blockstore/blockstore_purge.rs

@@ -354,15 +354,30 @@ impl Blockstore {
     ) -> Result<()> {
         let mut index0 = self.transaction_status_index_cf.get(0)?.unwrap_or_default();
         let mut index1 = self.transaction_status_index_cf.get(1)?.unwrap_or_default();
+        let slot_in_index = |slot: Slot| -> Option<u64> {
+            if slot <= index0.max_slot && (index0.frozen || slot > index1.max_slot) {
+                Some(0)
+            } else if slot <= index1.max_slot && (index1.frozen || slot > index0.max_slot) {
+                Some(1)
+            } else {
+                None
+            }
+        };
+
         for slot in from_slot..=to_slot {
+            let primary_index = slot_in_index(slot);
+            if primary_index.is_none() {
+                continue;
+            }
+            let primary_index = primary_index.unwrap();
+
             let slot_entries = self.get_any_valid_slot_entries(slot, 0);
             let transactions = slot_entries
                 .into_iter()
                 .flat_map(|entry| entry.transactions);
             for transaction in transactions {
                 if let Some(&signature) = transaction.signatures.get(0) {
-                    batch.delete::<cf::TransactionStatus>((0, signature, slot))?;
-                    batch.delete::<cf::TransactionStatus>((1, signature, slot))?;
+                    batch.delete::<cf::TransactionStatus>((primary_index, signature, slot))?;
 
                     let meta = self.read_transaction_status((signature, slot))?;
                     let loaded_addresses = meta.map(|meta| meta.loaded_addresses);
@@ -372,8 +387,12 @@ impl Blockstore {
                     );
 
                     for pubkey in account_keys.iter() {
-                        batch.delete::<cf::AddressSignatures>((0, *pubkey, slot, signature))?;
-                        batch.delete::<cf::AddressSignatures>((1, *pubkey, slot, signature))?;
+                        batch.delete::<cf::AddressSignatures>((
+                            primary_index,
+                            *pubkey,
+                            slot,
+                            signature,
+                        ))?;
                     }
                 }
             }