diff --git a/src/pkg/artifactselector/candidate.go b/src/pkg/artifactselector/candidate.go
index 818f29e5e..8a3996f29 100644
--- a/src/pkg/artifactselector/candidate.go
+++ b/src/pkg/artifactselector/candidate.go
@@ -65,26 +65,26 @@ func (r *Repository) FromJSON(jsonData string) error {
 // Candidate for retention processor to match
 type Candidate struct {
 	// Namespace(project) ID
-	NamespaceID int64
+	NamespaceID int64 `json:"namespace_id"`
 	// Namespace
-	Namespace string
+	Namespace string `json:"namespace"`
 	// Repository name
-	Repository string
+	Repository string `json:"repository"`
 	// Kind of the candidate
 	// "image" or "chart"
-	Kind string
+	Kind string `json:"kind"`
 	// Tags attached with the candidate
-	Tags []string
+	Tags []string `json:"tags"`
 	// Digest
-	Digest string
+	Digest string `json:"digest"`
 	// Pushed time in seconds
-	PushedTime int64
+	PushedTime int64 `json:"pushed_time_second"`
 	// Pulled time in seconds
-	PulledTime int64
+	PulledTime int64 `json:"pulled_time_second"`
 	// Created time in seconds
-	CreationTime int64
+	CreationTime int64 `json:"create_time_second"`
 	// Labels attached with the candidate
-	Labels []string
+	Labels []string `json:"labels"`
 }
 
 // Hash code based on the candidate info for differentiation
diff --git a/src/pkg/retention/job.go b/src/pkg/retention/job.go
index 55bec12db..cd69bec46 100644
--- a/src/pkg/retention/job.go
+++ b/src/pkg/retention/job.go
@@ -114,22 +114,26 @@ func (pj *Job) Run(ctx job.Context, params job.Parameters) error {
 	logResults(myLogger, allCandidates, results)
 
 	// Save retain and total num in DB
-	return saveRetainNum(ctx, results, allCandidates)
+	return saveRetainNum(ctx, results, allCandidates, isDryRun)
 }
 
-func saveRetainNum(ctx job.Context, results []*artifactselector.Result, allCandidates []*artifactselector.Candidate) error {
-	var delNum int
+func saveRetainNum(ctx job.Context, results []*artifactselector.Result, allCandidates []*artifactselector.Candidate, isDryRun bool) error {
+	var realDelete []*artifactselector.Result
 	for _, r := range results {
 		if r.Error == nil {
-			delNum++
+			realDelete = append(realDelete, r)
 		}
 	}
 	retainObj := struct {
-		Total    int `json:"total"`
-		Retained int `json:"retained"`
+		Total    int                        `json:"total"`
+		Retained int                        `json:"retained"`
+		DryRun   bool                       `json:"dry_run"`
+		Deleted  []*artifactselector.Result `json:"deleted"`
 	}{
 		Total:    len(allCandidates),
-		Retained: len(allCandidates) - delNum,
+		Retained: len(allCandidates) - len(realDelete),
+		DryRun:   isDryRun,
+		Deleted:  realDelete,
 	}
 	c, err := json.Marshal(retainObj)
 	if err != nil {