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Diffstat (limited to 'src/backend/access/transam/parallel.c')
| -rw-r--r-- | src/backend/access/transam/parallel.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/backend/access/transam/parallel.c b/src/backend/access/transam/parallel.c index 9c7428f5d6c..17f9a5ae6e4 100644 --- a/src/backend/access/transam/parallel.c +++ b/src/backend/access/transam/parallel.c @@ -135,6 +135,14 @@ CreateParallelContext(parallel_worker_main_type entrypoint, int nworkers) if (dynamic_shared_memory_type == DSM_IMPL_NONE) nworkers = 0; + /* + * If we are running under serializable isolation, we can't use + * parallel workers, at least not until somebody enhances that mechanism + * to be parallel-aware. + */ + if (IsolationIsSerializable()) + nworkers = 0; + /* We might be running in a short-lived memory context. */ oldcontext = MemoryContextSwitchTo(TopTransactionContext); |