diff options
| -rw-r--r-- | src/backend/optimizer/plan/planner.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/backend/optimizer/plan/planner.c b/src/backend/optimizer/plan/planner.c index 8e152078c59..a10bb89dcb6 100644 --- a/src/backend/optimizer/plan/planner.c +++ b/src/backend/optimizer/plan/planner.c @@ -6090,8 +6090,12 @@ plan_create_index_workers(Oid tableOid, Oid indexOid) double reltuples; double allvisfrac; - /* Return immediately when parallelism disabled */ - if (dynamic_shared_memory_type == DSM_IMPL_NONE || + /* + * We don't allow performing parallel operation in standalone backend or + * when parallelism is disabled. + */ + if (!IsUnderPostmaster || + dynamic_shared_memory_type == DSM_IMPL_NONE || max_parallel_maintenance_workers == 0) return 0; |