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Commitfd07919

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author
Amit Kapila
committed
Fix the errhint message and docs for drop subscription failure.
The existing errhint message and docs were missing the fact that we can'tdisassociate from the slot unless the subscription is disabled.Author: Robert Sjöblom, Peter SmithReviewed-by: Peter Eisentraut, Amit KapilaBackpatch-through: 11Discussion:https://postgr.es/m/807bdf85-61ea-88e2-5712-6d9fcd4eabff@fortnox.se
1 parentc2f974f commitfd07919

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‎doc/src/sgml/ref/drop_subscription.sgml

Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -85,9 +85,11 @@ DROP SUBSCRIPTION [ IF EXISTS ] <replaceable class="parameter">name</replaceable
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for the subscription on the remote host are released. If this fails,
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either because the remote host is not reachable or because the remote
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replication slot cannot be dropped or does not exist or never existed,
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the <command>DROP SUBSCRIPTION</command> command will fail. To proceed in
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this situation, disassociate the subscription from the replication slot by
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executing <literal>ALTER SUBSCRIPTION ... SET (slot_name = NONE)</literal>.
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the <command>DROP SUBSCRIPTION</command> command will fail. To proceed
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in this situation, first disable the subscription by executing
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<literal>ALTER SUBSCRIPTION ... DISABLE</literal>, and then disassociate
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it from the replication slot by executing
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<literal>ALTER SUBSCRIPTION ... SET (slot_name = NONE)</literal>.
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After that, <command>DROP SUBSCRIPTION</command> will no longer attempt any
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actions on a remote host. Note that if the remote replication slot still
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exists, it (and any related table synchronization slots) should then be

‎src/backend/commands/subscriptioncmds.c

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1860,7 +1860,8 @@ ReportSlotConnectionError(List *rstates, Oid subid, char *slotname, char *err)
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errmsg("could not connect to publisher when attempting to drop replication slot \"%s\": %s",
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slotname,err),
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/* translator: %s is an SQL ALTER command */
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errhint("Use %s to disassociate the subscription from the slot.",
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errhint("Use %s to disable the subscription, and then use %s to disassociate it from the slot.",
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"ALTER SUBSCRIPTION ... DISABLE",
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"ALTER SUBSCRIPTION ... SET (slot_name = NONE)")));
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}
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