compare revision hash instead of spec

pkg/cluster/pod.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"math/rand"
-	"reflect"
 
 	appsv1 "k8s.io/api/apps/v1"
 	v1 "k8s.io/api/core/v1"
@@ -344,7 +343,7 @@ func (c *Cluster) recreatePods() error {
 		role := PostgresRole(pod.Labels[c.OpConfig.PodRoleLabel])
 
 		// final check if spec of running pod differs from template
-		if reflect.DeepEqual(pod.Spec, c.Statefulset.Spec.Template.Spec) {
+		if pod.ObjectMeta.Labels["controller-revision-hash"] == c.Statefulset.Status.CurrentRevision {
 			c.logger.Infof("%q pod %q already updated", role, podName)
 			continue
 		}