diff -r c357c4e69b9e -r aa22103809cd src/main/kotlin/de/uapcore/lightpit/dao/PostgresDataAccessObject.kt
--- a/src/main/kotlin/de/uapcore/lightpit/dao/PostgresDataAccessObject.kt	Fri Dec 30 13:21:09 2022 +0100
+++ b/src/main/kotlin/de/uapcore/lightpit/dao/PostgresDataAccessObject.kt	Fri Dec 30 19:04:34 2022 +0100
@@ -534,10 +534,15 @@
         return i
     }
 
+    override fun listIssues(project: Project): List<Issue> =
+        withStatement("$issueQuery where i.project = ?") {
+            setInt(1, project.id)
+            queryAll { it.extractIssue() }
+        }
+
     override fun listIssues(project: Project, version: Version?, component: Component?): List<Issue> =
         withStatement(
-            """$issueQuery where
-                (not ? or i.project = ?) and 
+            """$issueQuery where i.project = ? and 
                 (not ? or ? in (resolved, affected)) and (not ? or (resolved is null and affected is null)) and
                 (not ? or component = ?) and (not ? or component is null)
             """.trimIndent()
@@ -553,10 +558,9 @@
                     setInt(idcol, search.id)
                 }
             }
-            setBoolean(1, true)
-            setInt(2, project.id)
-            applyFilter(version, 3, 5, 4)
-            applyFilter(component, 6, 8, 7)
+            setInt(1, project.id)
+            applyFilter(version, 2, 4, 3)
+            applyFilter(component, 5, 7, 6)
 
             queryAll { it.extractIssue() }
         }
@@ -629,6 +633,53 @@
 
     //</editor-fold>
 
+    //<editor-fold desc="Issue Relations">
+    override fun insertIssueRelation(rel: IssueRelation) {
+        withStatement(
+            """
+            insert into lpit_issue_relation (from_issue, to_issue, type)
+            values (?, ?, ?::relation_type)
+            on conflict do nothing
+            """.trimIndent()
+        ) {
+            if (rel.reverse) {
+                setInt(2, rel.from.id)
+                setInt(1, rel.to.id)
+            } else {
+                setInt(1, rel.from.id)
+                setInt(2, rel.to.id)
+            }
+            setEnum(3, rel.type)
+            executeUpdate()
+        }
+    }
+
+    override fun deleteIssueRelation(rel: IssueRelation) {
+        withStatement("delete from lpit_issue_relation where from_issue = ? and to_issue = ? and type=?::relation_type") {
+            if (rel.reverse) {
+                setInt(2, rel.from.id)
+                setInt(1, rel.to.id)
+            } else {
+                setInt(1, rel.from.id)
+                setInt(2, rel.to.id)
+            }
+            setEnum(3, rel.type)
+            executeUpdate()
+        }
+    }
+
+    override fun listIssueRelations(issue: Issue): List<IssueRelation> = buildList {
+        withStatement("select to_issue, type from lpit_issue_relation where from_issue = ?") {
+            setInt(1, issue.id)
+            queryAll { IssueRelation(issue, findIssue(it.getInt("to_issue"))!!, it.getEnum("type"), false) }
+        }.forEach(this::add)
+        withStatement("select from_issue, type from lpit_issue_relation where to_issue = ?") {
+            setInt(1, issue.id)
+            queryAll { IssueRelation(issue, findIssue(it.getInt("from_issue"))!!, it.getEnum("type"), true) }
+        }.forEach(this::add)
+    }
+    //</editor-fold>
+
     //<editor-fold desc="IssueComment">
 
     private fun ResultSet.extractIssueComment() =