Add separate effective fee stats fields

backend/src/api/database-migration.ts

@@ -7,7 +7,7 @@ import cpfpRepository from '../repositories/CpfpRepository';
 import { RowDataPacket } from 'mysql2';
 
 class DatabaseMigration {
-  private static currentVersion = 94;
+  private static currentVersion = 95;
   private queryTimeout = 3600_000;
   private statisticsAddedIndexed = false;
   private uniqueLogs: string[] = [];
@@ -1118,6 +1118,16 @@ class DatabaseMigration {
       }
       await this.updateToSchemaVersion(94);
     }
+
+    if (databaseSchemaVersion < 95) {
+      // Version 95
+      await this.$executeQuery(`
+        ALTER TABLE \`blocks\`
+          ADD \`effective_median_fee\` BIGINT UNSIGNED NOT NULL DEFAULT 0,
+          ADD \`effective_fee_span\` JSON DEFAULT NULL;
+      `);
+      await this.updateToSchemaVersion(95);
+    }
   }
 
   /**