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Previously, unless we had to add a NOT NULL constraint to the column, this command resulted in updating only the index's relcache entry. That's problematic when replication behavior is being driven off the existence of a primary key: other sessions (and ours too for that matter) failed to recalculate their opinion of whether the table can be replicated. Add a relcache invalidation to fix it. This has been broken since pg_class.relhaspkey was removed in v11. Before that, updating the table's relhaspkey value sufficed to cause a cache flush. Hence, backpatch to v11. Report and patch by Hou Zhijie Discussion: https://postgr.es/m/OS0PR01MB5716EBE01F112C62F8F9B786947B9@OS0PR01MB5716.jpnprd01.prod.outlook.com |
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