specify PersistentVolume selector in postgres.persistence

My cluster has a staticdisk StorageClass where the volumes do not get created by a provisioner.

I normally handle this by writing PersistentVolume and PersistentVolumeClaim specs manually, where the claim has a selector that finds the volume by label, like:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: ci-data
  namespace: ci
...
spec:
  storageClassName: staticdisk
  selector:
    matchLabels:
      name: "ci-data"
...

This would work with your chart too, if I could add a selector to the claim that it generates. (the volume itself would remain my problem / outside the scope of the chart)

As far as I tried its not possible right now.

Start by locating the Helm chart's postgres.persistence values and the template that generates its PersistentVolumeClaim. Check how existing persistence settings are rendered, then verify that a configured selector appears in the generated claim without requiring the chart to create the PersistentVolume.