store: Assert that block_ptr_from < block_ptr_to

graphprotocol · Oct 28, 2019 · 16abb45 · 16abb45
1 parent 5a7d86e
commit 16abb45
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/store/postgres/src/store.rs b/store/postgres/src/store.rs
@@ -821,7 +821,9 @@ impl StoreTrait for Store {
         block_ptr_to: EthereumBlockPointer,
         mods: Vec<EntityModification>,
     ) -> Result<bool, StoreError> {
+        // Improvement: Move this inside the transaction.
         let block_ptr_from = self.block_ptr(subgraph_id.clone())?;
+        assert!(block_ptr_from.number < block_ptr_to.number);
 
         // All operations should apply only to entities in this subgraph or
         // the subgraph of subgraphs