From 6205bd3972b1df4210c6e9107184886f4236dd38 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eckhart=20W=C3=B6rner?= <ewoerner@users.noreply.github.com>
Date: Sun, 24 Oct 2021 10:07:16 +0200
Subject: [PATCH] Fix performance of search by author.

Case insensitive search is not needed right now, and performance for the
case insensitive search has dropped in PostgreSQL 14.
---
 .../backend/repositories/MissionSpecifications.java          | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/main/java/com/bannergress/backend/repositories/MissionSpecifications.java b/src/main/java/com/bannergress/backend/repositories/MissionSpecifications.java
index 4c693b13..7a5e2d4d 100644
--- a/src/main/java/com/bannergress/backend/repositories/MissionSpecifications.java
+++ b/src/main/java/com/bannergress/backend/repositories/MissionSpecifications.java
@@ -9,8 +9,6 @@
 import javax.persistence.criteria.JoinType;
 
 import java.util.Collection;
-import java.util.List;
-import java.util.stream.Collectors;
 
 /**
  * Specifications for mission searches.
@@ -18,8 +16,7 @@
 public class MissionSpecifications {
     public static Specification<Mission> hasAuthors(Collection<String> authors) {
         return (mission, cq, cb) -> {
-            List<String> lowercaseAuthors = authors.stream().map(String::toLowerCase).collect(Collectors.toList());
-            return cb.lower(mission.get(Mission_.author).get(NamedAgent_.name)).in(lowercaseAuthors);
+            return mission.get(Mission_.author).get(NamedAgent_.name).in(authors);
         };
     }