Issue listing executions with Postgres

Editor assessment

The subject conveys the defect in plain terms: listing executions failed with Postgres. The fix type is accurate, and the absent scope is forgivable because the subject itself names the affected storage backend. No body is present, which is acceptable for a database-specific listing bug whose population the subject identifies. The PR reference is the only trailer and is well-formed. The noun-phrase opening Issue listing is slightly unidiomatic yet instantly readable. A compact, self-sufficient message where the subject alone delivers the essential what and where.