Commit 2f094e7 edited doc/src/sgml/ref/security_label.sgml to say this would work, but:
SECURITY LABEL ON PROPERTY GRAPH pgr IS 'unclassified'; ERROR: security labels are not supported for this type of object Which matches your intent, the implementation or the documentation? (I noticed this when a cursory audit of RELKIND_VIEW matches took me to SecLabelSupportsObjectType(). Consider auditing for RELKIND_VIEW matches that need edits for RELKIND_PROPGRAPH.)
