From b849c7859446e498b72345e147fa9f73d57d607c Mon Sep 17 00:00:00 2001
From: Marco Minerva <marco.minerva@gmail.com>
Date: Thu, 3 Jul 2025 09:31:06 +0200
Subject: [PATCH] Sort citations by filename and page number

Updated the return statement in the `VectorSearchService` class to return citations sorted by `FileName` and `PageNumber`, improving the organization of the output.
---
 SqlDatabaseVectorSearch/Services/VectorSearchService.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SqlDatabaseVectorSearch/Services/VectorSearchService.cs b/SqlDatabaseVectorSearch/Services/VectorSearchService.cs
index 3dd3ecf..75f7c45 100644
--- a/SqlDatabaseVectorSearch/Services/VectorSearchService.cs
+++ b/SqlDatabaseVectorSearch/Services/VectorSearchService.cs
@@ -187,7 +187,7 @@ public partial class VectorSearchService(IServiceProvider serviceProvider, Appli
 
         // Remove all content between 【 and 】.
         var cleanText = RemoveCitationsRegEx.Replace(text, string.Empty).TrimEnd();
-        return (cleanText, citations);
+        return (cleanText, citations.OrderBy(c => c.FileName).ThenBy(c => c.PageNumber));
     }
 
     [GeneratedRegex(@"<citation\s+document-id=(?:""|'|)(?<documentId>[^""']*)(?:""|'|)\s+chunk-id=(?:""|'|)(?<chunkId>[^""']*)(?:""|'|)\s+filename=(?:""|'|)(?<filename>[^""']*)(?:""|'|)\s+page-number=(?:""|'|)(?<pageNumber>[^""']*)(?:""|'|)\s+index-on-page=(?:""|'|)(?<indexOnPage>[^""']*)(?:""|'|)>\s*(?<quote>.*?)\s*</citation>", RegexOptions.Singleline)]