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Fix updating of pg_subscription_rel from workers

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A logical replication worker should not insert new rows into
pg_subscription_rel, only update existing rows, so that there are no
races if a concurrent refresh removes rows.  Adjust the API to be able
to choose that behavior.

Author: Masahiko Sawada <sawada.mshk@gmail.com>
Reported-by: tushar <tushar.ahuja@enterprisedb.com>
This commit is contained in:
Peter Eisentraut
2017-06-07 13:49:14 -04:00
parent 15ce775faa
commit 644ea35fc1
4 changed files with 19 additions and 11 deletions
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4
src/backend/commands/subscriptioncmds.c
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@@ -451,7 +451,7 @@ CreateSubscription(CreateSubscriptionStmt *stmt, bool isTopLevel)
rv->schemaname, rv->relname);
SetSubscriptionRelState(subid, relid, table_state,
InvalidXLogRecPtr);
InvalidXLogRecPtr, false);
}
ereport(NOTICE,
@@ -574,7 +574,7 @@ AlterSubscription_refresh(Subscription *sub, bool copy_data)
{
SetSubscriptionRelState(sub->oid, relid,
copy_data ? SUBREL_STATE_INIT : SUBREL_STATE_READY,
InvalidXLogRecPtr);
InvalidXLogRecPtr, false);
ereport(NOTICE,
(errmsg("added subscription for table %s.%s",
quote_identifier(rv->schemaname),