diff --git a/internal/eventstore/v2/repository/sql/crdb.go b/internal/eventstore/v2/repository/sql/crdb.go
index 0a383c7c39..51818be239 100644
--- a/internal/eventstore/v2/repository/sql/crdb.go
+++ b/internal/eventstore/v2/repository/sql/crdb.go
@@ -80,7 +80,9 @@ const (
 		"			        CASE " +
 		"			            WHEN NOT check_previous " +
 		"			                THEN max_event_seq " +
-		"			            	ELSE previous_sequence " +
+		"			            WHEN previous_sequence > 0" +
+		"			                THEN previous_sequence " +
+		"			            ELSE previous_sequence " +
 		"			        END" +
 		"			) " +
 		"		FROM input_event " +
diff --git a/internal/eventstore/v2/repository/sql/crdb_test.go b/internal/eventstore/v2/repository/sql/crdb_test.go
index ce3d02cb3e..cf66d1b9d0 100644
--- a/internal/eventstore/v2/repository/sql/crdb_test.go
+++ b/internal/eventstore/v2/repository/sql/crdb_test.go
@@ -5,6 +5,7 @@ import (
 	"testing"
 
 	"github.com/caos/zitadel/internal/eventstore/v2/repository"
+	"github.com/lib/pq"
 	_ "github.com/lib/pq"
 )
 
@@ -262,61 +263,171 @@ func TestCRDB_columnName(t *testing.T) {
 	}
 }
 
-func TestCRDB_Push(t *testing.T) {
+func TestCRDB_Push_OneAggregate(t *testing.T) {
 	type args struct {
 		events []*repository.Event
 	}
+	type eventsRes struct {
+		pushedEventsCount int
+		aggType           repository.AggregateType
+		aggID             []string
+	}
+	type res struct {
+		wantErr   bool
+		eventsRes eventsRes
+	}
 	tests := []struct {
-		name    string
-		args    args
-		wantErr bool
+		name string
+		args args
+		res  res
 	}{
 		{
 			name: "push no events",
 			args: args{
 				events: []*repository.Event{},
 			},
-			wantErr: false,
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 0,
+					aggID:             []string{"0"},
+					aggType:           repository.AggregateType(t.Name()),
+				},
+			},
 		},
 		{
 			name: "push 1 event with check previous",
 			args: args{
 				events: []*repository.Event{
-					{
-						// AggregateID:           t.Name(),
-						AggregateType:         "test",
-						CheckPreviousSequence: true,
-						EditorService:         "svc",
-						EditorUser:            "user",
-						PreviousEvent:         nil,
-						PreviousSequence:      0,
-						ResourceOwner:         "ro",
-						Type:                  "test.created",
-						Version:               "v1",
-					},
+					generateEvent(t, "1", true, 0),
 				},
 			},
-			wantErr: false,
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 1,
+					aggID:             []string{"1"},
+					aggType:           repository.AggregateType(t.Name()),
+				}},
 		},
 		{
-			name: "push 1 event with check previous wrong sequence",
+			name: "fail push 1 event with check previous wrong sequence",
 			args: args{
 				events: []*repository.Event{
-					{
-						// AggregateID:           t.Name(),
-						AggregateType:         "test",
-						CheckPreviousSequence: true,
-						EditorService:         "svc",
-						EditorUser:            "user",
-						PreviousEvent:         nil,
-						PreviousSequence:      5,
-						ResourceOwner:         "ro",
-						Type:                  "test.created",
-						Version:               "v1",
-					},
+					generateEvent(t, "2", true, 5),
+				},
+			},
+			res: res{
+				wantErr: true,
+				eventsRes: eventsRes{
+					pushedEventsCount: 0,
+					aggID:             []string{"2"},
+					aggType:           repository.AggregateType(t.Name()),
+				},
+			},
+		},
+		{
+			name: "push 1 event without check previous",
+			args: args{
+				events: []*repository.Event{
+					generateEvent(t, "3", false, 0),
+				},
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 1,
+					aggID:             []string{"3"},
+					aggType:           repository.AggregateType(t.Name()),
+				},
+			},
+		},
+		{
+			name: "push 1 event without check previous wrong sequence",
+			args: args{
+				events: []*repository.Event{
+					generateEvent(t, "4", false, 5),
+				},
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 1,
+					aggID:             []string{"4"},
+					aggType:           repository.AggregateType(t.Name()),
+				},
+			},
+		},
+		{
+			name: "fail on push two events on agg without linking",
+			args: args{
+				events: []*repository.Event{
+					generateEvent(t, "5", true, 0),
+					generateEvent(t, "5", true, 0),
+				},
+			},
+			res: res{
+				wantErr: true,
+				eventsRes: eventsRes{
+					pushedEventsCount: 0,
+					aggID:             []string{"5"},
+					aggType:           repository.AggregateType(t.Name()),
+				},
+			},
+		},
+		{
+			name: "push two events on agg with linking",
+			args: args{
+				events: linkEvents(
+					generateEvent(t, "6", true, 0),
+					generateEvent(t, "6", true, 0),
+				),
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 2,
+					aggID:             []string{"6"},
+					aggType:           repository.AggregateType(t.Name()),
+				},
+			},
+		},
+		{
+			name: "push two events on agg with linking without check previous",
+			args: args{
+				events: linkEvents(
+					generateEvent(t, "7", false, 0),
+					generateEvent(t, "7", false, 0),
+				),
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 2,
+					aggID:             []string{"7"},
+					aggType:           repository.AggregateType(t.Name()),
+				},
+			},
+		},
+		{
+			name: "push two events on agg with linking mixed check previous",
+			args: args{
+				events: linkEvents(
+					generateEvent(t, "8", false, 0),
+					generateEvent(t, "8", true, 0),
+					generateEvent(t, "8", false, 0),
+					generateEvent(t, "8", true, 0),
+					generateEvent(t, "8", true, 0),
+				),
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 5,
+					aggID:             []string{"8"},
+					aggType:           repository.AggregateType(t.Name()),
 				},
 			},
-			wantErr: true,
 		},
 	}
 	for _, tt := range tests {
@@ -324,9 +435,146 @@ func TestCRDB_Push(t *testing.T) {
 			db := &CRDB{
 				client: testCRDBClient,
 			}
-			if err := db.Push(context.Background(), tt.args.events...); (err != nil) != tt.wantErr {
-				t.Errorf("CRDB.Push() error = %v, wantErr %v", err, tt.wantErr)
+			if err := db.Push(context.Background(), tt.args.events...); (err != nil) != tt.res.wantErr {
+				t.Errorf("CRDB.Push() error = %v, wantErr %v", err, tt.res.wantErr)
+			}
+
+			countRow := testCRDBClient.QueryRow("SELECT COUNT(*) FROM eventstore.events where aggregate_type = $1 AND aggregate_id = ANY($2)", tt.res.eventsRes.aggType, pq.Array(tt.res.eventsRes.aggID))
+			var count int
+			err := countRow.Scan(&count)
+			if err != nil {
+				t.Error("unable to query inserted rows: ", err)
+				return
+			}
+			if count != tt.res.eventsRes.pushedEventsCount {
+				t.Errorf("expected push count %d got %d", tt.res.eventsRes.pushedEventsCount, count)
 			}
 		})
 	}
 }
+
+func TestCRDB_Push_MultipleAggregate(t *testing.T) {
+	type args struct {
+		events []*repository.Event
+	}
+	type eventsRes struct {
+		pushedEventsCount int
+		aggType           []repository.AggregateType
+		aggID             []string
+	}
+	type res struct {
+		wantErr   bool
+		eventsRes eventsRes
+	}
+	tests := []struct {
+		name string
+		args args
+		res  res
+	}{
+		{
+			name: "push two aggregates both check previous",
+			args: args{
+				events: []*repository.Event{
+					generateEvent(t, "100", true, 0),
+					generateEvent(t, "101", true, 0),
+				},
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 2,
+					aggID:             []string{"100", "101"},
+					aggType:           []repository.AggregateType{repository.AggregateType(t.Name())},
+				},
+			},
+		},
+		{
+			name: "push two aggregates both check previous multiple events",
+			args: args{
+				events: combineEventLists(
+					linkEvents(
+						generateEvent(t, "102", true, 0),
+						generateEvent(t, "102", true, 0),
+					),
+					linkEvents(
+						generateEvent(t, "103", true, 0),
+						generateEvent(t, "103", true, 0),
+					),
+				),
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 4,
+					aggID:             []string{"102", "103"},
+					aggType:           []repository.AggregateType{repository.AggregateType(t.Name())},
+				},
+			},
+		},
+		{
+			name: "fail push linked events of different aggregates",
+			args: args{
+				events: linkEvents(
+					generateEvent(t, "104", false, 0),
+					generateEvent(t, "104", false, 0),
+				),
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 0,
+					aggID:             []string{"104"},
+					aggType:           []repository.AggregateType{repository.AggregateType(t.Name())},
+				},
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			db := &CRDB{
+				client: testCRDBClient,
+			}
+			if err := db.Push(context.Background(), tt.args.events...); (err != nil) != tt.res.wantErr {
+				t.Errorf("CRDB.Push() error = %v, wantErr %v", err, tt.res.wantErr)
+			}
+
+			countRow := testCRDBClient.QueryRow("SELECT COUNT(*) FROM eventstore.events where aggregate_type = ANY($1) AND aggregate_id = ANY($2)", pq.Array(tt.res.eventsRes.aggType), pq.Array(tt.res.eventsRes.aggID))
+			var count int
+			err := countRow.Scan(&count)
+			if err != nil {
+				t.Error("unable to query inserted rows: ", err)
+				return
+			}
+			if count != tt.res.eventsRes.pushedEventsCount {
+				t.Errorf("expected push count %d got %d", tt.res.eventsRes.pushedEventsCount, count)
+			}
+		})
+	}
+}
+
+func combineEventLists(firstList []*repository.Event, secondList []*repository.Event) []*repository.Event {
+	return append(firstList, secondList...)
+}
+
+func linkEvents(events ...*repository.Event) []*repository.Event {
+	for i := 1; i < len(events); i++ {
+		events[i].PreviousEvent = events[i-1]
+	}
+	return events
+}
+
+func generateEvent(t *testing.T, aggregateID string, checkPrevious bool, previousSeq uint64) *repository.Event {
+	t.Helper()
+	return &repository.Event{
+		AggregateID:           aggregateID,
+		AggregateType:         repository.AggregateType(t.Name()),
+		CheckPreviousSequence: checkPrevious,
+		EditorService:         "svc",
+		EditorUser:            "user",
+		PreviousEvent:         nil,
+		PreviousSequence:      previousSeq,
+		ResourceOwner:         "ro",
+		Type:                  "test.created",
+		Version:               "v1",
+	}
+}