Perf/optimize get all with json aggregation

lib/storage/providers/SQLiteProvider.ts

@@ -201,11 +201,17 @@ const provider: StorageProvider<NitroSQLiteConnection | undefined> = {
             throw new Error('Store is not initialized!');
         }
 
-        return provider.store.executeAsync<OnyxSQLiteKeyValuePair>('SELECT record_key, valueJSON FROM keyvaluepairs;').then(({rows}) => {
-            // eslint-disable-next-line no-underscore-dangle
-            const result = rows?._array.map((row) => [row.record_key, JSON.parse(row.valueJSON)]);
-            return (result ?? []) as StorageKeyValuePair[];
-        });
+        // Aggregate the whole table into a single JSON string in SQLite so we only run JSON.parse
+        // once, instead of returning every row and parsing each one individually in JavaScript.
+        return provider.store
+            .executeAsync<{aggregated: string | null}>('SELECT json_group_array(json_array(record_key, json(valueJSON))) AS aggregated FROM keyvaluepairs;')
+            .then(({rows}) => {
+                const aggregated = rows?.item(0)?.aggregated;
+                if (aggregated == null) {
+                    return [];
+                }
+                return JSON.parse(aggregated) as StorageKeyValuePair[];
+            });
     },
     removeItem(key) {
         if (!provider.store) {

tests/unit/storage/providers/SQLiteProviderTest.ts

@@ -290,6 +290,23 @@ describe('SQLiteProvider', () => {
         });
     });
 
+    describe('getAll', () => {
+        it('should return every stored key-value pair with correct values', async () => {
+            await SQLiteProvider.multiSet(testEntries);
+
+            const out = await SQLiteProvider.getAll();
+            const sortedActual = [...out].sort((a, b) => a[0].localeCompare(b[0]));
+            const sortedExpected = [...testEntries].sort((a, b) => a[0].localeCompare(b[0]));
+
+            expect(out).toHaveLength(5);
+            expect(sortedActual).toEqual(sortedExpected);
+        });
+
+        it('should return an empty array when the store is empty', async () => {
+            expect(await SQLiteProvider.getAll()).toEqual([]);
+        });
+    });
+
     describe('removeItem', () => {
         it('should remove the key from the store', async () => {
             await SQLiteProvider.multiSet(testEntries);