diff -r 3d16ad54b3dc -r 0a658e53177c src/main/java/de/uapcore/lightpit/dao/postgres/PGVersionDao.java
--- a/src/main/java/de/uapcore/lightpit/dao/postgres/PGVersionDao.java	Sat May 30 18:12:38 2020 +0200
+++ b/src/main/java/de/uapcore/lightpit/dao/postgres/PGVersionDao.java	Mon Jun 01 14:46:58 2020 +0200
@@ -29,7 +29,9 @@
 package de.uapcore.lightpit.dao.postgres;
 
 import de.uapcore.lightpit.dao.VersionDao;
-import de.uapcore.lightpit.entities.*;
+import de.uapcore.lightpit.entities.Project;
+import de.uapcore.lightpit.entities.Version;
+import de.uapcore.lightpit.entities.VersionStatus;
 
 import java.sql.Connection;
 import java.sql.PreparedStatement;
@@ -42,7 +44,6 @@
 public final class PGVersionDao implements VersionDao {
 
     private final PreparedStatement insert, update, list, find;
-    private final PreparedStatement issuesAffected, issuesScheduled, issuesResolved;
 
     public PGVersionDao(Connection connection) throws SQLException {
         list = connection.prepareStatement(
@@ -64,54 +65,19 @@
         update = connection.prepareStatement(
                 "update lpit_version set name = ?, ordinal = ?, status = ?::version_status where versionid = ?"
         );
-
-        issuesAffected = connection.prepareStatement(
-                "select category, status, count(*) as issuecount " +
-                        "from lpit_issue_affected_version " +
-                        "join lpit_issue using (issueid) " +
-                        "where versionid = ? " +
-                        "group by category, status"
-        );
-        issuesScheduled = connection.prepareStatement(
-                "select category, status, count(*) as issuecount " +
-                        "from lpit_issue_scheduled_version " +
-                        "join lpit_issue using (issueid) " +
-                        "where versionid = ? " +
-                        "group by category, status"
-        );
-        issuesResolved = connection.prepareStatement(
-                "select category, status, count(*) as issuecount " +
-                        "from lpit_issue_resolved_version " +
-                        "join lpit_issue using (issueid) " +
-                        "where versionid = ? " +
-                        "group by category, status"
-        );
     }
 
     private Version mapColumns(ResultSet result) throws SQLException {
         final var project = new Project(result.getInt("project"));
         project.setName(result.getString("projectname"));
-        final var version = new Version(result.getInt("versionid"), project);
+        final var version = new Version(result.getInt("versionid"));
+        version.setProject(project);
         version.setName(result.getString("name"));
         version.setOrdinal(result.getInt("ordinal"));
         version.setStatus(VersionStatus.valueOf(result.getString("status")));
         return version;
     }
 
-    private VersionStatistics versionStatistics(Version version, PreparedStatement stmt) throws SQLException {
-        stmt.setInt(1, version.getId());
-        final var result = stmt.executeQuery();
-        final var stats = new VersionStatistics(version);
-        while (result.next()) {
-            stats.setIssueCount(
-                    IssueCategory.valueOf(result.getString("category")),
-                    IssueStatus.valueOf(result.getString("status")),
-                    result.getInt("issuecount")
-            );
-        }
-        return stats;
-    }
-
     @Override
     public void save(Version instance) throws SQLException {
         Objects.requireNonNull(instance.getName());
@@ -159,19 +125,4 @@
             }
         }
     }
-
-    @Override
-    public VersionStatistics statsOpenedIssues(Version version) throws SQLException {
-        return versionStatistics(version, issuesAffected);
-    }
-
-    @Override
-    public VersionStatistics statsScheduledIssues(Version version) throws SQLException {
-        return versionStatistics(version, issuesScheduled);
-    }
-
-    @Override
-    public VersionStatistics statsResolvedIssues(Version version) throws SQLException {
-        return versionStatistics(version, issuesResolved);
-    }
 }