https://www.postgresql.org/docs/current/infoschema-table-constraints.html "The view table_constraints contains all constraints belonging to tables that the current user owns or has some privilege other than SELECT on." thank you. that explains.
https://www.postgresql.org/docs/current/infoschema-table-constraints.html "The view table_constraints contains all constraints belonging to tables that the current user owns or has some privilege other than SELECT on." thank you. that explains.
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