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Disallow CREATE/DROP SUBSCRIPTION in transaction block

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Disallow CREATE SUBSCRIPTION and DROP SUBSCRIPTION in a transaction
block when the replication slot is to be created or dropped, since that
cannot be rolled back.

based on patch by Masahiko Sawada <sawada.mshk@gmail.com>
This commit is contained in:
Peter Eisentraut
2017-03-03 23:25:34 -05:00
parent 347302730d
commit 272adf4f9c
7 changed files with 66 additions and 15 deletions
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5
src/backend/tcop/utility.c
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@@ -1609,7 +1609,8 @@ ProcessUtilitySlow(ParseState *pstate,
break;
case T_CreateSubscriptionStmt:
address = CreateSubscription((CreateSubscriptionStmt *) parsetree);
address = CreateSubscription((CreateSubscriptionStmt *) parsetree,
isTopLevel);
break;
case T_AlterSubscriptionStmt:
@@ -1617,7 +1618,7 @@ ProcessUtilitySlow(ParseState *pstate,
break;
case T_DropSubscriptionStmt:
DropSubscription((DropSubscriptionStmt *) parsetree);
DropSubscription((DropSubscriptionStmt *) parsetree, isTopLevel);
/* no commands stashed for DROP */
commandCollected = true;
break;