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Lock nodes when building ddl task lists 

(cherry picked from commit b70949ae8c)
pull/5977/head
Hanefi Onaldi 2022-02-21 22:27:20 +03:00
parent 629ba8978f
commit d8a8e530fb
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1 changed files with 2 additions and 1 deletions
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3
src/backend/distributed/commands/utility_hook.c
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@ -1347,7 +1347,8 @@ DDLTaskList(Oid relationId, const char *commandString)
List * List *
NodeDDLTaskList(TargetWorkerSet targets, List *commands) NodeDDLTaskList(TargetWorkerSet targets, List *commands)
{ {
List *workerNodes = TargetWorkerSetNodeList(targets, NoLock); /* don't allow concurrent node list changes that require an exclusive lock */
List *workerNodes = TargetWorkerSetNodeList(targets, RowShareLock);
if (list_length(workerNodes) <= 0) if (list_length(workerNodes) <= 0)
{ {