distinguish between differential state/storage nodes and eventual ones

db/migrations/00025_eth_add_diff_row.sql

@@ -0,0 +1,13 @@
+-- +goose Up
+ALTER TABLE eth.state_cids
+ADD COLUMN diff BOOLEAN NOT NULL DEFAULT FALSE;
+
+ALTER TABLE eth.storage_cids
+ADD COLUMN diff BOOLEAN NOT NULL DEFAULT FALSE;
+
+-- +goose Down
+ALTER TABLE  eth.state_cids
+DROP COLUMN diff;
+
+ALTER TABLE  eth.storage_cids
+DROP COLUMN diff;

db/schema.sql

@@ -413,7 +413,8 @@ CREATE TABLE eth.state_cids (
     state_leaf_key character varying(66),
     cid text NOT NULL,
     state_path bytea,
-    node_type integer
+    node_type integer,
+    diff boolean DEFAULT false NOT NULL
 );
 
 
@@ -447,7 +448,8 @@ CREATE TABLE eth.storage_cids (
     storage_leaf_key character varying(66),
     cid text NOT NULL,
     storage_path bytea,
-    node_type integer
+    node_type integer,
+    diff boolean DEFAULT false NOT NULL
 );