diff options
Diffstat (limited to 'src/backend/executor/execMain.c')
| -rw-r--r-- | src/backend/executor/execMain.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/backend/executor/execMain.c b/src/backend/executor/execMain.c index 0f47c7e0104..d43a2048080 100644 --- a/src/backend/executor/execMain.c +++ b/src/backend/executor/execMain.c @@ -1550,9 +1550,10 @@ ExecutePlan(EState *estate, estate->es_direction = direction; /* - * If a tuple count was supplied or data is being written to relation, we - * must force the plan to run without parallelism, because we might exit - * early. + * If a tuple count was supplied, we must force the plan to run without + * parallelism, because we might exit early. Also disable parallelism + * when writing into a relation, because no database changes are allowed + * in parallel mode. */ if (numberTuples || dest->mydest == DestIntoRel) use_parallel_mode = false; |