From 78911abfdddcc8e4cad68d4d5eceef6fc8adcf2c Mon Sep 17 00:00:00 2001
From: wayonb <wayon@symbolsyndicate.us>
Date: Wed, 27 May 2026 22:14:23 -0400
Subject: [PATCH] [mainnet]: add index for transactions.type problem: as
 MongoDB database grows, search for transaction by type gets slower solution:
 add a primary index for transaction.type

---
 mongo/mongoDbPrepare.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mongo/mongoDbPrepare.js b/mongo/mongoDbPrepare.js
index cfacd5d..75202da 100644
--- a/mongo/mongoDbPrepare.js
+++ b/mongo/mongoDbPrepare.js
@@ -40,6 +40,7 @@
 	db.transactions.createIndex({ 'transaction.deadline': -1 });
 	db.transactions.createIndex({ 'transaction.cosignatures.signerPublicKey': 1 }, makeSparse('transaction.cosignatures.signerPublicKey'));
 	db.transactions.createIndex({ 'transaction.id': 1, 'transaction.type': 1 }, makeSparse('transaction.id'));
+	db.transactions.createIndex({ 'transaction.type': 1 });
 
 	db.createCollection('transactionStatements');
 	db.transactionStatements.createIndex(