From 3ecf11bb984a27f7b205cd9beec09394c51eec21 Mon Sep 17 00:00:00 2001
From: Thomas Kaul <4159106+dtslvr@users.noreply.github.com>
Date: Sat, 10 Oct 2026 14:47:07 +0200
Subject: [PATCH] Task/improve performance of historical market data query
 (#8061)

* Improve performance of historical market data query

* Update changelog
---
 CHANGELOG.md                                          |  1 +
 .../services/data-provider/data-provider.service.ts   | 11 +++--------
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a98179b3d2..73b61f15c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Extended the benchmark comparator to support benchmarks whose market data starts later than the portfolio
 - Harmonized the colors in the investment chart component
+- Improved the performance of getting the historical market data by loading only the requested asset profiles
 - Improved the language localization for Chinese (`zh`)
 
 ### Fixed
diff --git a/apps/api/src/services/data-provider/data-provider.service.ts b/apps/api/src/services/data-provider/data-provider.service.ts
index cfacab3231..7bd06b1c99 100644
--- a/apps/api/src/services/data-provider/data-provider.service.ts
+++ b/apps/api/src/services/data-provider/data-provider.service.ts
@@ -403,12 +403,8 @@ export class DataProviderService implements OnModuleInit {
           })}::timestamp`
         : Prisma.empty;
 
-    const dataSources = aItems.map(({ dataSource }) => {
-      return dataSource;
-    });
-
-    const symbols = aItems.map(({ symbol }) => {
-      return symbol;
+    const assetProfileIdentifiers = aItems.map(({ dataSource, symbol }) => {
+      return Prisma.sql`(${dataSource}::"DataSource", ${symbol})`;
     });
 
     try {
@@ -416,8 +412,7 @@ export class DataProviderService implements OnModuleInit {
         .$queryRaw`
           SELECT *
           FROM "MarketData"
-          WHERE "dataSource"::text IN (${Prisma.join(dataSources)})
-            AND "symbol" IN (${Prisma.join(symbols)})
+          WHERE ("dataSource", "symbol") IN (${Prisma.join(assetProfileIdentifiers)})
             ${granularityQuery}
             ${rangeQuery}
           ORDER BY date;`;