diff options
Diffstat (limited to 'src/backend/optimizer/plan/planner.c')
| -rw-r--r-- | src/backend/optimizer/plan/planner.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/src/backend/optimizer/plan/planner.c b/src/backend/optimizer/plan/planner.c index db5ff6fdca4..a1873ce26d4 100644 --- a/src/backend/optimizer/plan/planner.c +++ b/src/backend/optimizer/plan/planner.c @@ -70,7 +70,7 @@ /* GUC parameters */ double cursor_tuple_fraction = DEFAULT_CURSOR_TUPLE_FRACTION; -int force_parallel_mode = FORCE_PARALLEL_OFF; +int debug_parallel_query = DEBUG_PARALLEL_OFF; bool parallel_leader_participation = true; /* Hook for plugins to get control in planner() */ @@ -364,12 +364,12 @@ standard_planner(Query *parse, const char *query_string, int cursorOptions, * true during plan creation if a Gather or Gather Merge plan is actually * created (cf. create_gather_plan, create_gather_merge_plan). * - * However, if force_parallel_mode = on or force_parallel_mode = regress, - * then we impose parallel mode whenever it's safe to do so, even if the - * final plan doesn't use parallelism. It's not safe to do so if the - * query contains anything parallel-unsafe; parallelModeOK will be false - * in that case. Note that parallelModeOK can't change after this point. - * Otherwise, everything in the query is either parallel-safe or + * However, if debug_parallel_query = on or debug_parallel_query = + * regress, then we impose parallel mode whenever it's safe to do so, even + * if the final plan doesn't use parallelism. It's not safe to do so if + * the query contains anything parallel-unsafe; parallelModeOK will be + * false in that case. Note that parallelModeOK can't change after this + * point. Otherwise, everything in the query is either parallel-safe or * parallel-restricted, and in either case it should be OK to impose * parallel-mode restrictions. If that ends up breaking something, then * either some function the user included in the query is incorrectly @@ -377,7 +377,7 @@ standard_planner(Query *parse, const char *query_string, int cursorOptions, * parallel-unsafe, or else the query planner itself has a bug. */ glob->parallelModeNeeded = glob->parallelModeOK && - (force_parallel_mode != FORCE_PARALLEL_OFF); + (debug_parallel_query != DEBUG_PARALLEL_OFF); /* Determine what fraction of the plan is likely to be scanned */ if (cursorOptions & CURSOR_OPT_FAST_PLAN) @@ -431,7 +431,7 @@ standard_planner(Query *parse, const char *query_string, int cursorOptions, * Optionally add a Gather node for testing purposes, provided this is * actually a safe thing to do. */ - if (force_parallel_mode != FORCE_PARALLEL_OFF && top_plan->parallel_safe) + if (debug_parallel_query != DEBUG_PARALLEL_OFF && top_plan->parallel_safe) { Gather *gather = makeNode(Gather); @@ -449,7 +449,7 @@ standard_planner(Query *parse, const char *query_string, int cursorOptions, gather->plan.righttree = NULL; gather->num_workers = 1; gather->single_copy = true; - gather->invisible = (force_parallel_mode == FORCE_PARALLEL_REGRESS); + gather->invisible = (debug_parallel_query == DEBUG_PARALLEL_REGRESS); /* * Since this Gather has no parallel-aware descendants to signal to, |