calculate and push 4 in 6 milestones

e2e/config/localhost/zitadel.yaml

@@ -44,11 +44,12 @@ Console:
   InstanceManagementURL: "https://example.com/instances/{{.InstanceID}}"
 
 Projections:
+  RequeueEvery: 1s
   Customizations:
     NotificationsQuotas:
-      RequeueEvery: 1s
+#      RequeueEvery: 1s
     Telemetry:
-      RequeueEvery: 1s
+      RequeueEvery: 10s
 
 DefaultInstance:
   LoginPolicy:

internal/command/milestone.go

@@ -0,0 +1,27 @@
+package command
+
+import (
+	"context"
+
+	"github.com/zitadel/zitadel/internal/repository/milestone"
+)
+
+// MilestonePushed writes a new event with a new milestone.Aggregate to the eventstore
+func (c *Commands) MilestonePushed(
+	ctx context.Context,
+	instanceID string,
+	eventType milestone.PushedEventType,
+	endpoints []string,
+	primaryDomain string,
+) error {
+	id, err := c.idGenerator.Next()
+	if err != nil {
+		return err
+	}
+	pushedEvent, err := milestone.NewPushedEventByType(ctx, eventType, milestone.NewAggregate(id, instanceID, instanceID), endpoints, primaryDomain)
+	if err != nil {
+		return err
+	}
+	_, err = c.eventstore.Push(ctx, pushedEvent)
+	return err
+}

internal/command/telemetry.go

@@ -1,25 +0,0 @@
-package command
-
-import (
-	"context"
-
-	"github.com/zitadel/zitadel/internal/eventstore"
-
-	"github.com/zitadel/zitadel/internal/repository/milestone"
-)
-
-// ReportMilestoneReached writes each *milestone.ReachedEvent directly to the event store
-func (c *Commands) ReportMilestoneReached(ctx context.Context, triggeringEvent eventstore.Event, customContext interface{}) error {
-	aggregateId, err := c.idGenerator.Next()
-	if err != nil {
-		return err
-	}
-	_, err = c.eventstore.Push(ctx, milestone.NewReachedEvent(ctx, aggregateId, triggeringEvent, customContext))
-	return err
-}
-
-// ReportMilestonePushed defers a milestone.PushedEvent for each *milestone.ReachedEvent and writes it directly to the event store.
-func (c *Commands) ReportMilestonePushed(ctx context.Context, endpoints []string, reachedEvent *milestone.ReachedEvent) error {
-	_, err := c.eventstore.Push(ctx, milestone.NewPushedEvent(ctx, reachedEvent, endpoints))
-	return err
-}

internal/eventstore/handler/crdb/handler_stmt.go

@@ -5,6 +5,8 @@ import (
 	"database/sql"
 	"fmt"
 
+	"github.com/zitadel/zitadel/internal/repository/pseudo"
+
 	"github.com/zitadel/logging"
 
 	"github.com/zitadel/zitadel/internal/database"
@@ -49,6 +51,8 @@ type StatementHandler struct {
 	initialized chan bool
 
 	bulkLimit uint64
+
+	subscribe bool
 }
 
 func NewStatementHandler(
@@ -57,9 +61,16 @@ func NewStatementHandler(
 ) StatementHandler {
 	aggregateTypes := make([]eventstore.AggregateType, 0, len(config.Reducers))
 	reduces := make(map[eventstore.EventType]handler.Reduce, len(config.Reducers))
+	subscribe := true
 	for _, aggReducer := range config.Reducers {
 		aggregateTypes = append(aggregateTypes, aggReducer.Aggregate)
+		if aggReducer.Aggregate == pseudo.AggregateType {
+			subscribe = false
+		}
 		for _, eventReducer := range aggReducer.EventRedusers {
+			if eventReducer.Event == pseudo.TimestampEventType {
+				subscribe = false
+			}
 			reduces[eventReducer.Event] = eventReducer.Reduce
 		}
 	}
@@ -80,7 +91,7 @@ func NewStatementHandler(
 		initialized:             make(chan bool),
 	}
 
-	h.ProjectionHandler = handler.NewProjectionHandler(ctx, config.ProjectionHandlerConfig, h.reduce, h.Update, h.SearchQuery, h.Lock, h.Unlock, h.initialized)
+	h.ProjectionHandler = handler.NewProjectionHandler(ctx, config.ProjectionHandlerConfig, h.reduce, h.Update, h.SearchQuery, h.Lock, h.Unlock, h.initialized, subscribe)
 
 	return h
 }
@@ -88,6 +99,9 @@ func NewStatementHandler(
 func (h *StatementHandler) Start() {
 	h.initialized <- true
 	close(h.initialized)
+	if !h.subscribe {
+		return
+	}
 	h.Subscribe(h.aggregates...)
 }
 

internal/eventstore/handler/crdb/statement.go

@@ -1,6 +1,7 @@
 package crdb
 
 import (
+	"fmt"
 	"strconv"
 	"strings"
 
@@ -285,6 +286,24 @@ func NewCopyCol(column, from string) handler.Column {
 	}
 }
 
+func NewIsNullCond(column string) handler.Condition {
+	return handler.Condition{
+		Name: column,
+		Value: specialWhere(func(colName, param string) (clause string, needsParam bool) {
+			return fmt.Sprintf("%s IS NULL", colName), false
+		}),
+	}
+}
+
+func NewIsNotNullCond(column string) handler.Condition {
+	return handler.Condition{
+		Name: column,
+		Value: specialWhere(func(colName, param string) (clause string, needsParam bool) {
+			return fmt.Sprintf("%s IS NOT NULL", colName), false
+		}),
+	}
+}
+
 // NewCopyStatement creates a new upsert statement which updates a column from an existing row
 // cols represent the columns which are objective to change.
 // if the value of a col is empty the data will be copied from the selected row
@@ -384,13 +403,25 @@ func columnsToQuery(cols []handler.Column) (names []string, parameters []string,
 	return names, parameters, values[:parameterIndex]
 }
 
+type specialWhere func(colName, param string) (clause string, needsParam bool)
+
 func conditionsToWhere(cols []handler.Condition, paramOffset int) (wheres []string, values []interface{}) {
 	wheres = make([]string, len(cols))
-	values = make([]interface{}, len(cols))
+	values = make([]interface{}, 0, len(cols))
 
 	for i, col := range cols {
-		wheres[i] = "(" + col.Name + " = $" + strconv.Itoa(i+1+paramOffset) + ")"
-		values[i] = col.Value
+		param := strconv.Itoa(i + 1 + paramOffset)
+		special, ok := col.Value.(specialWhere)
+		if !ok {
+			wheres[i] = "(" + col.Name + " = $" + param + ")"
+			values = append(values, col.Value)
+			continue
+		}
+		clause, needsValueParam := special(col.Name, param)
+		wheres[i] = clause
+		if needsValueParam {
+			values = append(values, col.Value)
+		}
 	}
 
 	return wheres, values

internal/eventstore/handler/handler_projection.go

@@ -6,6 +6,8 @@ import (
 	"runtime/debug"
 	"time"
 
+	"github.com/zitadel/zitadel/internal/repository/pseudo"
+
 	"github.com/zitadel/logging"
 
 	"github.com/zitadel/zitadel/internal/api/authz"
@@ -73,6 +75,7 @@ func NewProjectionHandler(
 	lock Lock,
 	unlock Unlock,
 	initialized <-chan bool,
+	subscribe bool,
 ) *ProjectionHandler {
 	concurrentInstances := int(config.ConcurrentInstances)
 	if concurrentInstances < 1 {
@@ -97,8 +100,9 @@ func NewProjectionHandler(
 
 	go func() {
 		<-initialized
-		go h.subscribe(ctx)
-
+		if subscribe {
+			go h.subscribe(ctx)
+		}
 		go h.schedule(ctx)
 	}()
 
@@ -112,6 +116,13 @@ func (h *ProjectionHandler) Trigger(ctx context.Context, instances ...string) er
 	if len(instances) > 0 {
 		ids = instances
 	}
+	if h.searchQuery == nil {
+		return h.processTimestamp(ctx, ids...)
+	}
+	return h.processEvents(ctx, ids...)
+}
+
+func (h *ProjectionHandler) processEvents(ctx context.Context, ids ...string) error {
 	for {
 		events, hasLimitExceeded, err := h.FetchEvents(ctx, ids...)
 		if err != nil {
@@ -130,6 +141,11 @@ func (h *ProjectionHandler) Trigger(ctx context.Context, instances ...string) er
 	}
 }
 
+func (h *ProjectionHandler) processTimestamp(ctx context.Context, instances ...string) error {
+	_, err := h.Process(ctx, pseudo.NewTimestampEvent(h.nowFunc(), instances...))
+	return err
+}
+
 // Process handles multiple events by reducing them to statements and updating the projection
 func (h *ProjectionHandler) Process(ctx context.Context, events ...eventstore.Event) (index int, err error) {
 	if len(events) == 0 {

internal/notification/handlers/telemetry_pusher.go

@@ -2,12 +2,20 @@ package handlers
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 
-	"github.com/zitadel/zitadel/internal/repository/milestone"
+	"github.com/zitadel/logging"
+
+	"github.com/zitadel/zitadel/internal/query"
+
+	"github.com/zitadel/zitadel/internal/api/call"
+
+	"github.com/zitadel/zitadel/internal/repository/pseudo"
+
+	"github.com/zitadel/zitadel/internal/errors"
 
 	"github.com/zitadel/zitadel/internal/command"
-	"github.com/zitadel/zitadel/internal/errors"
 	"github.com/zitadel/zitadel/internal/eventstore"
 	"github.com/zitadel/zitadel/internal/eventstore/handler"
 	"github.com/zitadel/zitadel/internal/eventstore/handler/crdb"
@@ -61,34 +69,62 @@ func NewTelemetryPusher(
 }
 
 func (t *telemetryPusher) reducers() []handler.AggregateReducer {
-	return []handler.AggregateReducer{
-		{
-			Aggregate: milestone.AggregateType,
-			EventRedusers: []handler.EventReducer{
-				{
-					Event:  milestone.ReachedEventType,
-					Reduce: t.reduceMilestoneReached,
-				},
-			},
-		},
-	}
+	return []handler.AggregateReducer{{
+		Aggregate: pseudo.AggregateType,
+		EventRedusers: []handler.EventReducer{{
+			Event:  pseudo.TimestampEventType,
+			Reduce: t.pushMilestones,
+		}},
+	}}
 }
 
-func (t *telemetryPusher) reduceMilestoneReached(event eventstore.Event) (*handler.Statement, error) {
-	e, ok := event.(*milestone.ReachedEvent)
+func (t *telemetryPusher) pushMilestones(event eventstore.Event) (*handler.Statement, error) {
+	ctx := call.WithTimestamp(context.Background())
+	timestampEvent, ok := event.(pseudo.TimestampEvent)
 	if !ok {
-		return nil, errors.ThrowInvalidArgumentf(nil, "HANDL-UjA3E", "reduce.wrong.event.type %s", milestone.ReachedEventType)
+		return nil, errors.ThrowInvalidArgumentf(nil, "HANDL-lDTs5", "reduce.wrong.event.type %s", event.Type())
 	}
-	ctx := HandlerContext(event.Aggregate())
-	alreadyHandled, err := t.queries.IsAlreadyHandled(ctx, event, nil, milestone.AggregateType, milestone.PushedEventType)
+
+	isReached, err := query.NewNotNullQuery(query.MilestoneReachedDateColID)
 	if err != nil {
 		return nil, err
 	}
-	if alreadyHandled {
-		return crdb.NewNoOpStatement(e), nil
+	isNotPushed, err := query.NewIsNullQuery(query.MilestonePushedDateColID)
+	if err != nil {
+		return nil, err
 	}
+	hasPrimaryDomain, err := query.NewNotNullQuery(query.MilestonePrimaryDomainColID)
+	if err != nil {
+		return nil, err
+	}
+	unpushedMilestones, err := t.queries.Queries.SearchMilestones(ctx, timestampEvent.InstanceIDs, &query.MilestonesSearchQueries{
+		SearchRequest: query.SearchRequest{
+			Offset:        100,
+			SortingColumn: query.MilestoneReachedDateColID,
+			Asc:           true,
+		},
+		Queries: []query.SearchQuery{isReached, isNotPushed, hasPrimaryDomain},
+	})
+	if err != nil {
+		return nil, err
+	}
+	var errs int
+	for _, ms := range unpushedMilestones.Milestones {
+		if err = t.pushMilestone(ctx, ms); err != nil {
+			errs++
+			logging.Warnf("pushing milestone %+v failed: %s", *ms, err.Error())
+		}
+	}
+	if errs > 0 {
+		return nil, fmt.Errorf("pushing %d of %d milestones failed", errs, unpushedMilestones.Count)
+	}
+
+	return crdb.NewNoOpStatement(timestampEvent), nil
+}
+
+func (t *telemetryPusher) pushMilestone(ctx context.Context, ms *query.Milestone) error {
 	for _, endpoint := range t.endpoints {
-		if err = types.SendJSON(
+		if err := types.SendJSON(
 			ctx,
 			webhook.Config{
 				CallURL: endpoint,
@@ -96,18 +132,13 @@ func (t *telemetryPusher) reduceMilestoneReached(event eventstore.Event) (*handl
 			},
 			t.queries.GetFileSystemProvider,
 			t.queries.GetLogProvider,
-			e,
-			e,
+			ms,
+			nil,
 			t.metricSuccessfulDeliveriesJSON,
 			t.metricFailedDeliveriesJSON,
 		).WithoutTemplate(); err != nil {
-			return nil, err
+			return err
 		}
 	}
-
-	err = t.commands.ReportMilestonePushed(ctx, t.endpoints, e)
-	if err != nil {
-		return nil, err
-	}
-	return crdb.NewNoOpStatement(e), nil
+	return t.commands.MilestonePushed(ctx, ms.InstanceID, ms.MilestoneType, t.endpoints, ms.PrimaryDomain)
 }

internal/notification/projections.go

@@ -76,13 +76,15 @@ func Start(
 		metricSuccessfulDeliveriesJSON,
 		metricFailedDeliveriesJSON,
 	).Start()
-	handlers.NewTelemetryPusher(
-		ctx,
-		telemetryCfg,
-		projection.ApplyCustomConfig(telemetryHandlerCustomConfig),
-		commands,
-		q,
-		metricSuccessfulDeliveriesJSON,
-		metricFailedDeliveriesJSON,
-	).Start()
+	if telemetryCfg.Enabled {
+		handlers.NewTelemetryPusher(
+			ctx,
+			telemetryCfg,
+			projection.ApplyCustomConfig(telemetryHandlerCustomConfig),
+			commands,
+			q,
+			metricSuccessfulDeliveriesJSON,
+			metricFailedDeliveriesJSON,
+		).Start()
+	}
 }

internal/query/milestone.go

@@ -0,0 +1,139 @@
+package query
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/zitadel/zitadel/internal/repository/milestone"
+
+	"github.com/zitadel/zitadel/internal/api/authz"
+
+	sq "github.com/Masterminds/squirrel"
+
+	"github.com/zitadel/zitadel/internal/api/call"
+	"github.com/zitadel/zitadel/internal/errors"
+	"github.com/zitadel/zitadel/internal/query/projection"
+	"github.com/zitadel/zitadel/internal/telemetry/tracing"
+)
+
+type Milestones struct {
+	SearchResponse
+	Milestones []*Milestone
+}
+
+type Milestone struct {
+	InstanceID    string
+	MilestoneType milestone.PushedEventType
+	ReachedDate   time.Time
+	PushedDate    time.Time
+	PrimaryDomain string
+}
+
+type MilestonesSearchQueries struct {
+	SearchRequest
+	Queries []SearchQuery
+}
+
+func (q *MilestonesSearchQueries) toQuery(query sq.SelectBuilder) sq.SelectBuilder {
+	query = q.SearchRequest.toQuery(query)
+	for _, q := range q.Queries {
+		query = q.toQuery(query)
+	}
+	return query
+}
+
+var (
+	milestonesTable = table{
+		name:          projection.MilestonesProjectionTable,
+		instanceIDCol: projection.MilestoneColumnInstanceID,
+	}
+	MilestoneInstanceIDColID = Column{
+		name:  projection.MilestoneColumnInstanceID,
+		table: milestonesTable,
+	}
+	MilestoneTypeColID = Column{
+		name:  projection.MilestoneColumnMilestoneType,
+		table: milestonesTable,
+	}
+	MilestonePrimaryDomainColID = Column{
+		name:  projection.MilestoneColumnPrimaryDomain,
+		table: milestonesTable,
+	}
+	MilestoneReachedDateColID = Column{
+		name:  projection.MilestoneColumnReachedDate,
+		table: milestonesTable,
+	}
+	MilestonePushedDateColID = Column{
+		name:  projection.MilestoneColumnPushedDate,
+		table: milestonesTable,
+	}
+)
+
+// SearchMilestones tries to defer the instanceID from the passed context if no instanceIDs are passed
+func (q *Queries) SearchMilestones(ctx context.Context, instanceIDs []string, queries *MilestonesSearchQueries) (_ *Milestones, err error) {
+	ctx, span := tracing.NewSpan(ctx)
+	defer func() { span.EndWithError(err) }()
+	query, scan := prepareMilestonesQuery(ctx, q.client)
+	if len(instanceIDs) == 0 {
+		instanceIDs = []string{authz.GetInstance(ctx).InstanceID()}
+	}
+	stmt, args, err := queries.toQuery(query).
+		Where(sq.Eq{
+			MilestoneInstanceIDColID.identifier(): fmt.Sprintf("IN (%s)", strings.Join(instanceIDs, ",")),
+		}).ToSql()
+	if err != nil {
+		return nil, errors.ThrowInternal(err, "QUERY-A9i5k", "Errors.Query.SQLStatement")
+	}
+	rows, err := q.client.QueryContext(ctx, stmt, args...)
+	if err != nil {
+		return nil, err
+	}
+	milestones, err := scan(rows)
+	if err != nil {
+		return nil, err
+	}
+	milestones.LatestSequence, err = q.latestSequence(ctx, milestonesTable)
+	return milestones, err
+
+}
+
+func prepareMilestonesQuery(ctx context.Context, db prepareDatabase) (sq.SelectBuilder, func(*sql.Rows) (*Milestones, error)) {
+	return sq.Select(
+			MilestonePrimaryDomainColID.identifier(),
+			MilestoneReachedDateColID.identifier(),
+			MilestonePushedDateColID.identifier(),
+			MilestoneTypeColID.identifier(),
+			countColumn.identifier(),
+		).
+			From(notificationPolicyTable.identifier() + db.Timetravel(call.Took(ctx))).
+			PlaceholderFormat(sq.Dollar),
+		func(rows *sql.Rows) (*Milestones, error) {
+			milestones := make([]*Milestone, 0)
+			var count uint64
+			for rows.Next() {
+				m := new(Milestone)
+				err := rows.Scan(
+					&m.PrimaryDomain,
+					&m.ReachedDate,
+					&m.MilestoneType,
+					&count,
+				)
+				if err != nil {
+					return nil, err
+				}
+				milestones = append(milestones, m)
+			}
+			if err := rows.Close(); err != nil {
+				return nil, errors.ThrowInternal(err, "QUERY-CK9mI", "Errors.Query.CloseRows")
+			}
+			return &Milestones{
+				Milestones: milestones,
+				SearchResponse: SearchResponse{
+					Count: count,
+				},
+			}, nil
+		}
+}

internal/query/projection/milestones.go

@@ -6,9 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"github.com/zitadel/zitadel/internal/repository/project"
-	"github.com/zitadel/zitadel/internal/repository/user"
-
 	"github.com/zitadel/zitadel/internal/repository/milestone"
 
 	"github.com/zitadel/zitadel/internal/errors"
@@ -16,6 +13,8 @@ import (
 	"github.com/zitadel/zitadel/internal/eventstore/handler"
 	"github.com/zitadel/zitadel/internal/eventstore/handler/crdb"
 	"github.com/zitadel/zitadel/internal/repository/instance"
+	"github.com/zitadel/zitadel/internal/repository/project"
+	"github.com/zitadel/zitadel/internal/repository/user"
 )
 
 const (
@@ -23,25 +22,25 @@ const (
 
 	MilestoneColumnInstanceID    = "instance_id"
 	MilestoneColumnMilestoneType = "milestone_type"
-	MilestoneColumnReachedAt     = "reached_at"
-	MilestoneColumnPushedAt      = "pushed_at"
 	MilestoneColumnPrimaryDomain = "primary_domain"
+	MilestoneColumnReachedDate   = "reached_date"
+	MilestoneColumnPushedDate    = "pushed_date"
 )
 
 type milestoneProjection struct {
 	crdb.StatementHandler
 }
 
-func newMilestoneInstanceProjection(ctx context.Context, config crdb.StatementHandlerConfig) *milestoneProjection {
+func newMilestoneProjection(ctx context.Context, config crdb.StatementHandlerConfig) *milestoneProjection {
 	p := new(milestoneProjection)
 	config.ProjectionName = MilestonesProjectionTable
 	config.Reducers = p.reducers()
 	config.InitCheck = crdb.NewMultiTableCheck(
 		crdb.NewTable([]*crdb.Column{
 			crdb.NewColumn(MilestoneColumnInstanceID, crdb.ColumnTypeText),
-			crdb.NewColumn(MilestoneColumnMilestoneType, crdb.ColumnTypeEnum),
-			crdb.NewColumn(MilestoneColumnReachedAt, crdb.ColumnTypeTimestamp, crdb.Nullable()),
-			crdb.NewColumn(MilestoneColumnPushedAt, crdb.ColumnTypeTimestamp, crdb.Nullable()),
+			crdb.NewColumn(MilestoneColumnMilestoneType, crdb.ColumnTypeText),
+			crdb.NewColumn(MilestoneColumnReachedDate, crdb.ColumnTypeTimestamp, crdb.Nullable()),
+			crdb.NewColumn(MilestoneColumnPushedDate, crdb.ColumnTypeTimestamp, crdb.Nullable()),
 			crdb.NewColumn(MilestoneColumnPrimaryDomain, crdb.ColumnTypeText, crdb.Nullable()),
 		},
 			crdb.NewPrimaryKey(MilestoneColumnInstanceID, MilestoneColumnMilestoneType),
@@ -66,7 +65,7 @@ func (p *milestoneProjection) reducers() []handler.AggregateReducer {
 				},
 				{
 					Event:  instance.InstanceRemovedEventType,
-					Reduce: p.reduceInstanceRemoved,
+					Reduce: p.milestoneReached(milestone.PushedInstanceDeletedEventType),
 				},
 			},
 		},
@@ -75,11 +74,11 @@ func (p *milestoneProjection) reducers() []handler.AggregateReducer {
 			EventRedusers: []handler.EventReducer{
 				{
 					Event:  project.ProjectAddedType,
-					Reduce: p.reduceProjectAdded,
+					Reduce: p.milestoneReached(milestone.PushedProjectCreatedEventType),
 				},
 				{
 					Event:  project.ApplicationAddedType,
-					Reduce: p.reduceApplicationAdded,
+					Reduce: p.milestoneReached(milestone.PushedApplicationCreatedEventType),
 				},
 			},
 		},
@@ -92,57 +91,72 @@ func (p *milestoneProjection) reducers() []handler.AggregateReducer {
 				},
 			},
 		},
-		{
-			Aggregate: milestone.AggregateType,
-			EventRedusers: []handler.EventReducer{
-				{
-					Event:  milestone.PushedEventType,
-					Reduce: p.milestonePushed,
-				},
-			},
-		},
 	}
 }
 
-func (p *milestoneProjection) reduceInstanceDomainPrimarySet(event eventstore.Event) (*handler.Statement, error) {
-	e, ok := event.(*instance.DomainPrimarySetEvent)
-	if !ok {
-		return nil, errors.ThrowInvalidArgumentf(nil, "HANDL-Sfrgf", "reduce.wrong.event.type %s", instance.InstanceDomainPrimarySetEventType)
-	}
-
-	var statements []func(eventstore.Event) crdb.Exec
-	for _, ms := range milestone.All() {
-		statements = append(statements, crdb.AddUpsertStatement(
-			[]handler.Column{
-				handler.NewCol(MilestoneColumnInstanceID, nil),
-				handler.NewCol(MilestoneColumnMilestoneType, nil),
-			},
-			[]handler.Column{
-				handler.NewCol(MilestoneColumnInstanceID, e.Aggregate().InstanceID),
-				handler.NewCol(MilestoneColumnMilestoneType, ms),
-				handler.NewCol(MilestoneColumnPrimaryDomain, e.Domain),
-			},
-		))
-	}
-
-	return crdb.NewMultiStatement(e, statements...), nil
-}
-
 func (p *milestoneProjection) reduceInstanceAdded(event eventstore.Event) (*handler.Statement, error) {
 	printEvent(event)
-
-	return crdb.NewNoOpStatement(event), nil
+	e, ok := event.(*instance.InstanceAddedEvent)
+	if !ok {
+		return nil, errors.ThrowInvalidArgumentf(nil, "HANDL-JbHGS", "reduce.wrong.event.type %s", instance.InstanceAddedEventType)
+	}
+	allTypes := milestone.PushedEventTypes()
+	statements := make([]func(eventstore.Event) crdb.Exec, 0, len(allTypes))
+	for _, ms := range allTypes {
+		createColumns := []handler.Column{
+			handler.NewCol(MilestoneColumnInstanceID, e.Aggregate().InstanceID),
+			handler.NewCol(MilestoneColumnMilestoneType, ms),
+		}
+		if ms == milestone.PushedInstanceCreatedEventType {
+			createColumns = append(createColumns, handler.NewCol(MilestoneColumnReachedDate, event.CreationDate()))
+		}
+		statements = append(statements, crdb.AddCreateStatement(createColumns))
+	}
+	return crdb.NewMultiStatement(e, statements...), nil
 }
 
-func (p *milestoneProjection) reduceProjectAdded(event eventstore.Event) (*handler.Statement, error) {
+func (p *milestoneProjection) reduceInstanceDomainPrimarySet(event eventstore.Event) (*handler.Statement, error) {
 	printEvent(event)
-	// ignore instance.ProjectSetEventType
-	return crdb.NewNoOpStatement(event), nil
+	e, ok := event.(*instance.DomainPrimarySetEvent)
+	if !ok {
+		return nil, errors.ThrowInvalidArgumentf(nil, "HANDL-Sfrgf", "reduce.wrong.event.type %s", instance.InstanceDomainPrimarySetEventType)
+	}
+	allTypes := milestone.PushedEventTypes()
+	statements := make([]func(eventstore.Event) crdb.Exec, 0, len(allTypes))
+	for _, ms := range allTypes {
+		statements = append(statements, crdb.AddUpdateStatement(
+			[]handler.Column{
+				handler.NewCol(MilestoneColumnPrimaryDomain, e.Domain),
+			},
+			[]handler.Condition{
+				handler.NewCond(MilestoneColumnInstanceID, e.Aggregate().InstanceID),
+				handler.NewCond(MilestoneColumnMilestoneType, ms),
+				crdb.NewIsNullCond(MilestoneColumnPushedDate),
+			},
+		))
+	}
+	return crdb.NewMultiStatement(e, statements...), nil
 }
 
-func (p *milestoneProjection) reduceApplicationAdded(event eventstore.Event) (*handler.Statement, error) {
-	printEvent(event)
-	return crdb.NewNoOpStatement(event), nil
+func (p *milestoneProjection) milestoneReached(eventType milestone.PushedEventType) func(event eventstore.Event) (*handler.Statement, error) {
+	return func(event eventstore.Event) (*handler.Statement, error) {
+		printEvent(event)
+		if event.EditorUser() == "" || event.EditorService() == "" {
+			return crdb.NewNoOpStatement(event), nil
+		}
+		return crdb.NewUpdateStatement(
+			event,
+			[]handler.Column{
+				handler.NewCol(MilestoneColumnReachedDate, event.CreationDate()),
+			},
+			[]handler.Condition{
+				handler.NewCond(MilestoneColumnInstanceID, event.Aggregate().InstanceID),
+				handler.NewCond(MilestoneColumnMilestoneType, eventType),
+				crdb.NewIsNullCond(MilestoneColumnReachedDate),
+				crdb.NewIsNullCond(MilestoneColumnPushedDate),
+			},
+		), nil
+	}
 }
 
 func (p *milestoneProjection) reduceUserTokenAdded(event eventstore.Event) (*handler.Statement, error) {
@@ -155,11 +169,6 @@ func (p *milestoneProjection) reduceInstanceRemoved(event eventstore.Event) (*ha
 	return crdb.NewNoOpStatement(event), nil
 }
 
-func (p *milestoneProjection) milestonePushed(event eventstore.Event) (*handler.Statement, error) {
-	printEvent(event)
-	return crdb.NewNoOpStatement(event), nil
-}
-
 func printEvent(event eventstore.Event) {
 	var pretty bytes.Buffer
 	if err := json.Indent(&pretty, event.DataAsBytes(), "", "    "); err != nil {

internal/query/projection/projection.go

@@ -67,6 +67,7 @@ var (
 	TelemetryPusherProjection           interface{}
 	DeviceAuthProjection                *deviceAuthProjection
 	SessionProjection                   *sessionProjection
+	MilestoneProjection                 *milestoneProjection
 )
 
 type projection interface {
@@ -144,6 +145,7 @@ func Create(ctx context.Context, sqlClient *database.DB, es *eventstore.Eventsto
 	NotificationPolicyProjection = newNotificationPolicyProjection(ctx, applyCustomConfig(projectionConfig, config.Customizations["notification_policies"]))
 	DeviceAuthProjection = newDeviceAuthProjection(ctx, applyCustomConfig(projectionConfig, config.Customizations["device_auth"]))
 	SessionProjection = newSessionProjection(ctx, applyCustomConfig(projectionConfig, config.Customizations["sessions"]))
+	MilestoneProjection = newMilestoneProjection(ctx, applyCustomConfig(projectionConfig, config.Customizations["milestones"]))
 	newProjectionsList()
 	return nil
 }
@@ -241,5 +243,6 @@ func newProjectionsList() {
 		NotificationPolicyProjection,
 		DeviceAuthProjection,
 		SessionProjection,
+		MilestoneProjection,
 	}
 }

internal/query/search_query.go

@@ -66,6 +66,27 @@ func (q *NotNullQuery) comp() sq.Sqlizer {
 	return sq.NotEq{q.Column.identifier(): nil}
 }
 
+type IsNullQuery struct {
+	Column Column
+}
+
+func NewIsNullQuery(col Column) (*IsNullQuery, error) {
+	if col.isZero() {
+		return nil, ErrMissingColumn
+	}
+	return &IsNullQuery{
+		Column: col,
+	}, nil
+}
+
+func (q *IsNullQuery) toQuery(query sq.SelectBuilder) sq.SelectBuilder {
+	return query.Where(q.comp())
+}
+
+func (q *IsNullQuery) comp() sq.Sqlizer {
+	return sq.Eq{q.Column.identifier(): nil}
+}
+
 type orQuery struct {
 	queries []SearchQuery
 }

internal/query/user.go

@@ -338,6 +338,7 @@ func (q *Queries) GetUserByID(ctx context.Context, shouldTriggerBulk bool, userI
 	defer func() { span.EndWithError(err) }()
 
 	if shouldTriggerBulk {
+		// TODO: Why are these errors not handled?
 		projection.UserProjection.Trigger(ctx)
 		projection.LoginNameProjection.Trigger(ctx)
 	}

internal/repository/milestone/aggregate.go

@@ -13,15 +13,14 @@ type Aggregate struct {
 	eventstore.Aggregate
 }
 
-// Each data point receives its own aggregate
-func newAggregate(id, instanceId, resourceOwner string) *Aggregate {
+func NewAggregate(id, resourceOwner, instanceID string) *Aggregate {
 	return &Aggregate{
 		Aggregate: eventstore.Aggregate{
 			Type:          AggregateType,
 			Version:       AggregateVersion,
 			ID:            id,
-			InstanceID:    instanceId,
 			ResourceOwner: resourceOwner,
+			InstanceID:    instanceID,
 		},
 	}
 }

internal/repository/milestone/events.go

@@ -1,66 +1,216 @@
-//go:
-
 package milestone
 
 import (
 	"context"
-	"encoding/json"
-	"time"
+	"fmt"
 
-	"github.com/zitadel/zitadel/internal/errors"
 	"github.com/zitadel/zitadel/internal/eventstore"
-	"github.com/zitadel/zitadel/internal/eventstore/repository"
 )
 
+type PushedEventType eventstore.EventType
+
 const (
-	eventTypePrefix = eventstore.EventType("milestone.")
-	PushedEventType = eventTypePrefix + "pushed"
+	eventTypePrefix                                     = PushedEventType("milestone.pushed.")
+	PushedInstanceCreatedEventType                      = eventTypePrefix + "instance.created"
+	PushedAuthenticationSucceededOnInstanceEventType    = eventTypePrefix + "instance.authentication.succeeded"
+	PushedProjectCreatedEventType                       = eventTypePrefix + "project.created"
+	PushedApplicationCreatedEventType                   = eventTypePrefix + "application.created"
+	PushedAuthenticationSucceededOnApplicationEventType = eventTypePrefix + "application.authentication.succeeded"
+	PushedInstanceDeletedEventType                      = eventTypePrefix + "instance.deleted"
 )
 
-type PushedEvent struct {
+func PushedEventTypes() []PushedEventType {
+	return []PushedEventType{
+		PushedInstanceCreatedEventType,
+		PushedAuthenticationSucceededOnInstanceEventType,
+		PushedProjectCreatedEventType,
+		PushedApplicationCreatedEventType,
+		PushedAuthenticationSucceededOnApplicationEventType,
+		PushedInstanceDeletedEventType,
+	}
+}
+
+type PushedEvent interface {
+	eventstore.Command
+	IsMilestoneEvent()
+}
+
+type basePushedEvent struct {
 	eventstore.BaseEvent `json:"-"`
-	Milestone            Milestone `json:"milestone"`
-	Reached              time.Time `json:"reached"`
-	Endpoints            []string  `json:"endpoints"`
-	PrimaryDomain        string    `json:"primaryDomain"`
+	PrimaryDomain        string   `json:"primaryDomain"`
+	Endpoints            []string `json:"endpoints"`
 }
 
-func (e *PushedEvent) Data() interface{} {
-	return e
+func (b *basePushedEvent) Data() interface{} {
+	return b
 }
 
-func (e *PushedEvent) UniqueConstraints() []*eventstore.EventUniqueConstraint {
+func (b *basePushedEvent) UniqueConstraints() []*eventstore.EventUniqueConstraint {
 	return nil
 }
 
-func NewPushedEvent(
+func (b *basePushedEvent) SetBaseEvent(base *eventstore.BaseEvent) {
+	b.BaseEvent = *base
+}
+
+func NewPushedEventByType(
 	ctx context.Context,
-	newAggregate *Aggregate,
-	milestone Milestone,
-	reached time.Time,
+	eventType PushedEventType,
+	aggregate *Aggregate,
 	endpoints []string,
 	primaryDomain string,
-) *PushedEvent {
-	return &PushedEvent{
-		BaseEvent: *eventstore.NewBaseEventForPush(
-			ctx,
-			&newAggregate.Aggregate,
-			PushedEventType,
-		),
-		Milestone:     milestone,
-		Reached:       reached,
-		Endpoints:     endpoints,
-		PrimaryDomain: primaryDomain,
+) (PushedEvent, error) {
+	switch eventType {
+	case PushedInstanceCreatedEventType:
+		return NewInstanceCreatedPushedEvent(ctx, aggregate, endpoints, primaryDomain), nil
+	case PushedAuthenticationSucceededOnInstanceEventType:
+		return NewAuthenticationSucceededOnInstancePushedEvent(ctx, aggregate, endpoints, primaryDomain), nil
+	case PushedProjectCreatedEventType:
+		return NewProjectCreatedPushedEvent(ctx, aggregate, endpoints, primaryDomain), nil
+	case PushedApplicationCreatedEventType:
+		return NewApplicationCreatedPushedEvent(ctx, aggregate, endpoints, primaryDomain), nil
+	case PushedAuthenticationSucceededOnApplicationEventType:
+		return NewAuthenticationSucceededOnApplicationPushedEvent(ctx, aggregate, endpoints, primaryDomain), nil
+	case PushedInstanceDeletedEventType:
+		return NewInstanceDeletedPushedEvent(ctx, aggregate, endpoints, primaryDomain), nil
+	}
+	return nil, fmt.Errorf("unknown event type %s", eventType)
+}
+
+type InstanceCreatedPushedEvent struct{ basePushedEvent }
+
+func (e *InstanceCreatedPushedEvent) IsMilestoneEvent() {}
+
+func NewInstanceCreatedPushedEvent(
+	ctx context.Context,
+	aggregate *Aggregate,
+	endpoints []string,
+	primaryDomain string,
+) *InstanceCreatedPushedEvent {
+	return &InstanceCreatedPushedEvent{
+		basePushedEvent: basePushedEvent{
+			BaseEvent: *eventstore.NewBaseEventForPush(
+				ctx,
+				&aggregate.Aggregate,
+				eventstore.EventType(PushedInstanceCreatedEventType),
+			),
+			Endpoints:     endpoints,
+			PrimaryDomain: primaryDomain,
+		},
 	}
 }
 
-func PushedEventMapper(event *repository.Event) (eventstore.Event, error) {
-	e := &PushedEvent{
-		BaseEvent: *eventstore.BaseEventFromRepo(event),
+type AuthenticationSucceededOnInstancePushedEvent struct{ basePushedEvent }
+
+func (e *AuthenticationSucceededOnInstancePushedEvent) IsMilestoneEvent() {}
+
+func NewAuthenticationSucceededOnInstancePushedEvent(
+	ctx context.Context,
+	aggregate *Aggregate,
+	endpoints []string,
+	primaryDomain string,
+) *AuthenticationSucceededOnInstancePushedEvent {
+	return &AuthenticationSucceededOnInstancePushedEvent{
+		basePushedEvent: basePushedEvent{
+			BaseEvent: *eventstore.NewBaseEventForPush(
+				ctx,
+				&aggregate.Aggregate,
+				eventstore.EventType(PushedAuthenticationSucceededOnInstanceEventType),
+			),
+			Endpoints:     endpoints,
+			PrimaryDomain: primaryDomain,
+		},
+	}
+}
+
+type ProjectCreatedPushedEvent struct{ basePushedEvent }
+
+func (e *ProjectCreatedPushedEvent) IsMilestoneEvent() {}
+
+func NewProjectCreatedPushedEvent(
+	ctx context.Context,
+	aggregate *Aggregate,
+	endpoints []string,
+	primaryDomain string,
+) *ProjectCreatedPushedEvent {
+	return &ProjectCreatedPushedEvent{
+		basePushedEvent: basePushedEvent{
+			BaseEvent: *eventstore.NewBaseEventForPush(
+				ctx,
+				&aggregate.Aggregate,
+				eventstore.EventType(PushedProjectCreatedEventType),
+			),
+			Endpoints:     endpoints,
+			PrimaryDomain: primaryDomain,
+		},
+	}
+}
+
+type ApplicationCreatedPushedEvent struct{ basePushedEvent }
+
+func (e *ApplicationCreatedPushedEvent) IsMilestoneEvent() {}
+
+func NewApplicationCreatedPushedEvent(
+	ctx context.Context,
+	aggregate *Aggregate,
+	endpoints []string,
+	primaryDomain string,
+) *ApplicationCreatedPushedEvent {
+	return &ApplicationCreatedPushedEvent{
+		basePushedEvent: basePushedEvent{
+			BaseEvent: *eventstore.NewBaseEventForPush(
+				ctx,
+				&aggregate.Aggregate,
+				eventstore.EventType(PushedApplicationCreatedEventType),
+			),
+			Endpoints:     endpoints,
+			PrimaryDomain: primaryDomain,
+		},
+	}
+}
+
+type AuthenticationSucceededOnApplicationPushedEvent struct{ basePushedEvent }
+
+func (e *AuthenticationSucceededOnApplicationPushedEvent) IsMilestoneEvent() {}
+
+func NewAuthenticationSucceededOnApplicationPushedEvent(
+	ctx context.Context,
+	aggregate *Aggregate,
+	endpoints []string,
+	primaryDomain string,
+) *AuthenticationSucceededOnApplicationPushedEvent {
+	return &AuthenticationSucceededOnApplicationPushedEvent{
+		basePushedEvent: basePushedEvent{
+			BaseEvent: *eventstore.NewBaseEventForPush(
+				ctx,
+				&aggregate.Aggregate,
+				eventstore.EventType(PushedAuthenticationSucceededOnApplicationEventType),
+			),
+			Endpoints:     endpoints,
+			PrimaryDomain: primaryDomain,
+		},
+	}
+}
+
+type InstanceDeletedPushedEvent struct{ basePushedEvent }
+
+func (e *InstanceDeletedPushedEvent) IsMilestoneEvent() {}
+
+func NewInstanceDeletedPushedEvent(
+	ctx context.Context,
+	aggregate *Aggregate,
+	endpoints []string,
+	primaryDomain string,
+) *InstanceDeletedPushedEvent {
+	return &InstanceDeletedPushedEvent{
+		basePushedEvent: basePushedEvent{
+			BaseEvent: *eventstore.NewBaseEventForPush(
+				ctx,
+				&aggregate.Aggregate,
+				eventstore.EventType(PushedInstanceDeletedEventType),
+			),
+			Endpoints:     endpoints,
+			PrimaryDomain: primaryDomain,
+		},
 	}
-	err := json.Unmarshal(event.Data, e)
-	if err != nil {
-		return nil, errors.ThrowInternal(err, "QUOTA-4n8vs", "unable to unmarshal milestone pushed")
-	}
-	return e, nil
 }

internal/repository/milestone/eventstore.go

@@ -5,6 +5,10 @@ import (
 )
 
 func RegisterEventMappers(es *eventstore.Eventstore) {
-	es.RegisterFilterEventMapper(AggregateType, ReachedEventType, ReachedEventMapper).
-		RegisterFilterEventMapper(AggregateType, PushedEventType, PushedEventMapper)
+	es.RegisterFilterEventMapper(AggregateType, eventstore.EventType(PushedProjectCreatedEventType), eventstore.GenericEventMapper[InstanceCreatedPushedEvent]).
+		RegisterFilterEventMapper(AggregateType, eventstore.EventType(PushedAuthenticationSucceededOnInstanceEventType), eventstore.GenericEventMapper[AuthenticationSucceededOnInstancePushedEvent]).
+		RegisterFilterEventMapper(AggregateType, eventstore.EventType(PushedProjectCreatedEventType), eventstore.GenericEventMapper[ProjectCreatedPushedEvent]).
+		RegisterFilterEventMapper(AggregateType, eventstore.EventType(PushedApplicationCreatedEventType), eventstore.GenericEventMapper[ApplicationCreatedPushedEvent]).
+		RegisterFilterEventMapper(AggregateType, eventstore.EventType(PushedAuthenticationSucceededOnApplicationEventType), eventstore.GenericEventMapper[AuthenticationSucceededOnApplicationPushedEvent]).
+		RegisterFilterEventMapper(AggregateType, eventstore.EventType(PushedInstanceDeletedEventType), eventstore.GenericEventMapper[InstanceDeletedPushedEvent])
 }

internal/repository/milestone/milestone_string.go

@@ -1,30 +0,0 @@
-// Code generated by "stringer -type=Milestone"; DO NOT EDIT.
-
-package milestone
-
-import "strconv"
-
-func _() {
-	// An "invalid array index" compiler error signifies that the constant values have changed.
-	// Re-run the stringer command to generate them again.
-	var x [1]struct{}
-	_ = x[unknown-0]
-	_ = x[InstanceCreated-1]
-	_ = x[AuthenticationSucceededOnInstance-2]
-	_ = x[ProjectCreated-3]
-	_ = x[ApplicationCreated-4]
-	_ = x[AuthenticationSucceededOnApplication-5]
-	_ = x[InstanceDeleted-6]
-	_ = x[milestonesCount-7]
-}
-
-const _Milestone_name = "unknownInstanceCreatedAuthenticationSucceededOnInstanceProjectCreatedApplicationCreatedAuthenticationSucceededOnApplicationInstanceDeletedmilestonesCount"
-
-var _Milestone_index = [...]uint8{0, 7, 22, 55, 69, 87, 123, 138, 153}
-
-func (i Milestone) String() string {
-	if i < 0 || i >= Milestone(len(_Milestone_index)-1) {
-		return "Milestone(" + strconv.FormatInt(int64(i), 10) + ")"
-	}
-	return _Milestone_name[_Milestone_index[i]:_Milestone_index[i+1]]
-}

internal/repository/milestone/milestones.go

@@ -1,25 +0,0 @@
-//go:generate stringer -type=Milestone
-
-package milestone
-
-type Milestone int
-
-const (
-	unknown Milestone = iota
-	InstanceCreated
-	AuthenticationSucceededOnInstance
-	ProjectCreated
-	ApplicationCreated
-	AuthenticationSucceededOnApplication
-	InstanceDeleted
-
-	milestonesCount
-)
-
-func All() []Milestone {
-	milestones := make([]Milestone, milestonesCount-1)
-	for i := 1; i < int(milestonesCount); i++ {
-		milestones[i] = Milestone(i)
-	}
-	return milestones
-}

internal/repository/pseudo/aggregate.go

@@ -0,0 +1,5 @@
+package pseudo
+
+const (
+	AggregateType = "pseudo"
+)

internal/repository/pseudo/events.go

@@ -0,0 +1,65 @@
+package pseudo
+
+import (
+	"time"
+
+	"github.com/zitadel/zitadel/internal/eventstore"
+)
+
+const (
+	eventTypePrefix    = eventstore.EventType("pseudo.")
+	TimestampEventType = eventTypePrefix + "timestamp"
+)
+
+var _ eventstore.Event = (*TimestampEvent)(nil)
+
+type TimestampEvent struct {
+	Timestamp   time.Time
+	InstanceIDs []string
+}
+
+func (t TimestampEvent) Aggregate() eventstore.Aggregate {
+	panic("TimestampEvent is not a real event")
+}
+
+func (t TimestampEvent) EditorService() string {
+	panic("TimestampEvent is not a real event")
+}
+
+func (t TimestampEvent) EditorUser() string {
+	panic("TimestampEvent is not a real event")
+}
+
+func (t TimestampEvent) Type() eventstore.EventType {
+	panic("TimestampEvent is not a real event")
+}
+
+func (t TimestampEvent) Sequence() uint64 {
+	panic("TimestampEvent is not a real event")
+}
+
+func (t TimestampEvent) CreationDate() time.Time {
+	panic("TimestampEvent is not a real event")
+}
+
+func (t TimestampEvent) PreviousAggregateSequence() uint64 {
+	panic("TimestampEvent is not a real event")
+}
+
+func (t TimestampEvent) PreviousAggregateTypeSequence() uint64 {
+	panic("TimestampEvent is not a real event")
+}
+
+func (t TimestampEvent) DataAsBytes() []byte {
+	panic("TimestampEvent is not a real event")
+}
+
+func NewTimestampEvent(
+	timestamp time.Time,
+	instanceIDs ...string,
+) *TimestampEvent {
+	return &TimestampEvent{
+		Timestamp:   timestamp,
+		InstanceIDs: instanceIDs,
+	}
+}