diff --git a/db/schema/0.1.0.sql b/db/schema/0.1.0.sql
index d83b4f3..f1faae5 100644
--- a/db/schema/0.1.0.sql
+++ b/db/schema/0.1.0.sql
@@ -27,7 +27,6 @@ CREATE TYPE en57.event AS (
 );
 
 CREATE TYPE en57.append_result AS (
-    status text,
     "position" bigint,
     conflicting_events jsonb
 );
@@ -117,8 +116,7 @@ BEGIN
                 e.id = matched_event_id
             INTO
                 conflicting_events;
-            RETURN ROW ('append_condition_violated',
-                matched_position,
+            RETURN ROW (matched_position,
                 conflicting_events)::en57.append_result;
         END IF;
     END LOOP;
@@ -147,8 +145,7 @@ INSERT INTO en57.events (id, type, data, meta)
     FROM
         unnest(new_events) AS e
     CROSS JOIN LATERAL unnest(COALESCE(e.tags, ARRAY[]::text[])) AS t (value);
-    RETURN ROW ('success',
-        appended_position,
+    RETURN ROW (appended_position,
         NULL)::en57.append_result;
 END;
 $$;
diff --git a/lib/en57/repository.rb b/lib/en57/repository.rb
index 027bceb..2bc88a5 100644
--- a/lib/en57/repository.rb
+++ b/lib/en57/repository.rb
@@ -35,7 +35,7 @@ module En57
       ] = fail_if_events_match unless fail_if_events_match.empty?
 
       statement =
-        "SELECT status, position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)"
+        "SELECT position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)"
       params = [
         @array_encoder.encode(event_records),
         JSON.generate(append_condition),
@@ -54,12 +54,7 @@ module En57
             end
           end
 
-        case row.first.fetch("status")
-        when "success"
-          Success.new(
-            position: row.first.fetch("position").then { Integer(it) },
-          )
-        when "append_condition_violated"
+        if row.first.fetch("conflicting_events")
           Failure.new(
             position: row.first.fetch("position").then { Integer(it) },
             conflicting_events:
@@ -67,6 +62,10 @@ module En57
                 .parse(row.first.fetch("conflicting_events"))
                 .map { deserialize_event(it) },
           )
+        else
+          Success.new(
+            position: row.first.fetch("position").then { Integer(it) },
+          )
         end
       rescue @adapter.serialization_error
         if attempts_remaining.positive?
diff --git a/test/pg_regress/expected/001_schema.out b/test/pg_regress/expected/001_schema.out
index d83b4f3..f1faae5 100644
--- a/test/pg_regress/expected/001_schema.out
+++ b/test/pg_regress/expected/001_schema.out
@@ -27,7 +27,6 @@ CREATE TYPE en57.event AS (
 );
 
 CREATE TYPE en57.append_result AS (
-    status text,
     "position" bigint,
     conflicting_events jsonb
 );
@@ -117,8 +116,7 @@ BEGIN
                 e.id = matched_event_id
             INTO
                 conflicting_events;
-            RETURN ROW ('append_condition_violated',
-                matched_position,
+            RETURN ROW (matched_position,
                 conflicting_events)::en57.append_result;
         END IF;
     END LOOP;
@@ -147,8 +145,7 @@ INSERT INTO en57.events (id, type, data, meta)
     FROM
         unnest(new_events) AS e
     CROSS JOIN LATERAL unnest(COALESCE(e.tags, ARRAY[]::text[])) AS t (value);
-    RETURN ROW ('success',
-        appended_position,
+    RETURN ROW (appended_position,
         NULL)::en57.append_result;
 END;
 $$;
diff --git a/test/test_repository.rb b/test/test_repository.rb
index 37ea976..2e57035 100644
--- a/test/test_repository.rb
+++ b/test/test_repository.rb
@@ -36,7 +36,7 @@ module En57
           :exec_params,
           success_result,
           [
-            "SELECT status, position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
+            "SELECT position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
             [expected_events, "{}"],
           ],
         )
@@ -80,7 +80,7 @@ module En57
           :exec_params,
           success_result,
           [
-            "SELECT status, position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
+            "SELECT position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
             [expected_events, "{}"],
           ],
         )
@@ -108,7 +108,7 @@ module En57
           :exec_params,
           success_result,
           [
-            "SELECT status, position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
+            "SELECT position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
             [
               expected_events,
               '{"fail_if_events_match":[{"types":["OrderPlaced"],"after":42}]}',
@@ -156,7 +156,7 @@ module En57
         connection.expect(:exec, nil, ["BEGIN"])
         connection.expect(:exec_params, nil) do |sql, params|
           assert_equal(
-            "SELECT status, position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
+            "SELECT position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
             sql,
           )
           assert_equal(
@@ -536,7 +536,7 @@ module En57
       end
     end
 
-    def test_append_returns_failure_when_sql_status_is_append_condition_violated
+    def test_append_returns_failure_when_sql_returns_conflicting_events
       with_connection do |connection|
         connection.expect(:exec, nil, ["BEGIN ISOLATION LEVEL SERIALIZABLE"])
         connection.expect(:exec_params, failure_result, append_args)
@@ -654,12 +654,11 @@ module En57
 
     def record_encoder = @record_encoder ||= PG::TextEncoder::Record.new
 
-    def success_result = [{ "status" => "success", "position" => "1" }]
+    def success_result = [{ "position" => "1", "conflicting_events" => nil }]
 
     def failure_result
       [
         {
-          "status" => "append_condition_violated",
           "position" => "3",
           "conflicting_events" =>
             JSON.generate(
@@ -693,7 +692,7 @@ module En57
 
     def append_args
       [
-        "SELECT status, position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
+        "SELECT position, conflicting_events FROM en57.append_events($1::en57.event[], $2::jsonb)",
         [
           array_encoder.encode(append_event_records),
           '{"fail_if_events_match":[{"types":["OrderPlaced"]}]}',