don't sql log statement

chart/templates/deployment-postgres.yaml

@@ -26,12 +26,14 @@ spec:
   {{ end }}
   postgresql:
     version: {{ .Values.postgresql.version | quote }}
-    {{- if .Values.postgresql.parameters }}
+    {{- with .Values.postgresql.parameters }}
+    {{- if . }}
     parameters:  # Expert section
-      shared_buffers: {{ .Values.postgresql.parameters.shared_buffers | quote }}
-      max_connections: {{ .Values.postgresql.parameters.max_connections | quote }}
-      log_statement: {{ .Values.postgresql.parameters.log_statement | quote }}
-    {{ end }}
+      {{ if .shared_buffers }}shared_buffers: {{ .shared_buffers | quote }}{{ end }}
+      {{ if .max_connections }}max_connections: {{ .max_connections | quote }}{{ end }}
+      {{ if .log_statement }}log_statement: {{ .log_statement | quote }}{{ end }}
+    {{- end }}
+    {{- end }}
   volume:
     size: {{ .Values.postgresql.volume.size | quote }}
     storageClass:  {{ .Values.postgresql.volume.storageClass | quote }}

chart/values.yaml

@@ -115,9 +115,9 @@ postgresql:
 #  preparedDatabases:
 #    extensions: {}
   parameters:
-    shared_buffers: 512Mi
-    max_connections: 100
-    log_statement: all
+#    shared_buffers: 512Mi
+#    max_connections: 99
+    log_statement: none
   volume:
     size: 20Gi
     storageClass: isilon