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Cleanup slots during drop database

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Automatically drop all logical replication slots associated with a
database when the database is dropped. Previously we threw an ERROR
if a slot existed. Now we throw ERROR only if a slot is active in
the database being dropped.

Craig Ringer
This commit is contained in:
Simon Riggs
2017-03-28 10:05:21 -04:00
parent 4d33a7f2e7
commit ff539da316
7 changed files with 182 additions and 14 deletions
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src/include/replication/slot.h
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@@ -177,6 +177,7 @@ extern void ReplicationSlotsComputeRequiredXmin(bool already_locked);
extern void ReplicationSlotsComputeRequiredLSN(void);
extern XLogRecPtr ReplicationSlotsComputeLogicalRestartLSN(void);
extern bool ReplicationSlotsCountDBSlots(Oid dboid, int *nslots, int *nactive);
extern void ReplicationSlotsDropDBSlots(Oid dboid);
extern void StartupReplicationSlots(void);
extern void CheckPointReplicationSlots(void);