diff --git a/src/de/steamwar/sql/Event.java b/src/de/steamwar/sql/Event.java
index 90dcba2..7985232 100644
--- a/src/de/steamwar/sql/Event.java
+++ b/src/de/steamwar/sql/Event.java
@@ -97,11 +97,6 @@ public class Event {
         return schemType;
     }
 
-    @Deprecated
-    public String getSchemType() {
-        return schemType.toDB();
-    }
-
     private boolean now() {
         Instant now = Instant.now();
         return now.isAfter(start.toInstant()) && now.isBefore(end.toInstant());
diff --git a/src/de/steamwar/sql/Fight.java b/src/de/steamwar/sql/Fight.java
index 8576184..efa230d 100644
--- a/src/de/steamwar/sql/Fight.java
+++ b/src/de/steamwar/sql/Fight.java
@@ -41,7 +41,7 @@ public class Fight {
     public static List<Fight> getPage(int page, int elementsPerPage) {
         List<Fight> fights = getPage.listSelect(page * elementsPerPage, elementsPerPage);
 
-        List<FightPlayer> fightPlayers = FightPlayer.batchGet(fights.stream().map(f -> f.fightID).toArray(Integer[]::new));
+        List<FightPlayer> fightPlayers = FightPlayer.batchGet(fights.stream().map(f -> f.fightID));
         for(Fight fight : fights) {
             fight.initPlayers(fightPlayers);
         }
diff --git a/src/de/steamwar/sql/FightPlayer.java b/src/de/steamwar/sql/FightPlayer.java
index 73b5a05..57b977c 100644
--- a/src/de/steamwar/sql/FightPlayer.java
+++ b/src/de/steamwar/sql/FightPlayer.java
@@ -26,8 +26,9 @@ import de.steamwar.sql.internal.Table;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
-import java.util.Collections;
 import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 @AllArgsConstructor
 public class FightPlayer {
@@ -56,10 +57,9 @@ public class FightPlayer {
         create.update(fightID, userID, blue ? 1 : 2, kit, kills, isOut);
     }
 
-    public static List<FightPlayer> batchGet(Integer[] fightIds) {
-        if(fightIds.length == 0)
-            return Collections.emptyList();
-
-        return batchGet.listSelect((Object) fightIds);
+    public static List<FightPlayer> batchGet(Stream<Integer> fightIds) {
+        try (SelectStatement<FightPlayer> batch = new SelectStatement<>(table, "SELECT * FROM FightPlayer WHERE FightID IN (" + fightIds.map(Object::toString).collect(Collectors.joining(", ")) + ")")) {
+            return batch.listSelect();
+        }
     }
 }
diff --git a/src/de/steamwar/sql/SteamwarUser.java b/src/de/steamwar/sql/SteamwarUser.java
index dfbbcd0..7ce882d 100644
--- a/src/de/steamwar/sql/SteamwarUser.java
+++ b/src/de/steamwar/sql/SteamwarUser.java
@@ -26,6 +26,7 @@ import java.sql.Timestamp;
 import java.util.*;
 import java.util.function.BiConsumer;
 import java.util.function.Consumer;
+import java.util.stream.Collectors;
 
 public class SteamwarUser {
 
@@ -47,7 +48,6 @@ public class SteamwarUser {
 	private static final SelectStatement<SteamwarUser> byDiscord = table.selectFields("DiscordId");
 	private static final SelectStatement<SteamwarUser> byTeam = table.selectFields("Team");
 	private static final SelectStatement<SteamwarUser> getServerTeam = new SelectStatement<>(table, "SELECT * FROM UserData WHERE UserGroup != 'Member' AND UserGroup != 'YouTuber'");
-	private static final SelectStatement<SteamwarUser> batchGet = new SelectStatement<>(table, "SELECT * FROM UserData WHERE id IN ?");
 
 	private static final Statement updateName = table.update(Table.PRIMARY, "UserName");
 	private static final Statement updateLocale = table.update(Table.PRIMARY, "Locale", "ManualLocale");
@@ -135,7 +135,9 @@ public class SteamwarUser {
 		if(ids.isEmpty())
 			return;
 
-		batchGet.listSelect((Object) ids.toArray());
+		try (SelectStatement<SteamwarUser> batch = new SelectStatement<>(table, "SELECT * FROM UserData WHERE id IN (" + ids.stream().map(Object::toString).collect(Collectors.joining(", ")) + ")")) {
+			batch.listSelect();
+		}
 	}
 
 	@Getter
diff --git a/src/de/steamwar/sql/Tutorial.java b/src/de/steamwar/sql/Tutorial.java
index 3249bfe..9febcba 100644
--- a/src/de/steamwar/sql/Tutorial.java
+++ b/src/de/steamwar/sql/Tutorial.java
@@ -63,7 +63,7 @@ public class Tutorial {
 
     @Getter
     @Field(keys = {Table.PRIMARY}, autoincrement = true)
-    private final int id;
+    private final int tutorialId;
     @Getter
     @Field(keys = {"CreatorName"})
     private final int creator;
@@ -81,14 +81,14 @@ public class Tutorial {
     private final double stars;
 
     public void release() {
-        release.update(1, id);
+        release.update(1, tutorialId);
     }
 
     public void delete() {
-        delete.update(id);
+        delete.update(tutorialId);
     }
 
     public void rate(int user, int rating) {
-        rate.update(id, user, rating);
+        rate.update(tutorialId, user, rating);
     }
 }
diff --git a/src/de/steamwar/sql/internal/SqlTypeMapper.java b/src/de/steamwar/sql/internal/SqlTypeMapper.java
index b9ff93e..34c6173 100644
--- a/src/de/steamwar/sql/internal/SqlTypeMapper.java
+++ b/src/de/steamwar/sql/internal/SqlTypeMapper.java
@@ -65,7 +65,6 @@ public final class SqlTypeMapper<T> {
         new SqlTypeMapper<>(String.class, "TEXT", ResultSet::getString, PreparedStatement::setString);
         new SqlTypeMapper<>(Timestamp.class, "TIMESTAMP", ResultSet::getTimestamp, PreparedStatement::setTimestamp);
         new SqlTypeMapper<>(InputStream.class, "BLOB", ResultSet::getBinaryStream, PreparedStatement::setBinaryStream);
-        new SqlTypeMapper<>(Integer[].class, null, (rs, identifier) -> { throw new SecurityException("Arrays cannot be used as type (recursive select)"); }, (st, index, value) -> st.setArray(index, st.getConnection().createArrayOf("INTEGER", value)));
     }
 
     private static <T> void primitiveMapper(Class<T> primitive, Class<T> wrapped, String sqlType, SQLReader<T> reader, SQLWriter<T> writer) {