diff options
Diffstat (limited to 'src/backend/commands/explain.c')
| -rw-r--r-- | src/backend/commands/explain.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c index 25d8ca075d4..ee13136b7fd 100644 --- a/src/backend/commands/explain.c +++ b/src/backend/commands/explain.c @@ -23,6 +23,7 @@ #include "foreign/fdwapi.h" #include "nodes/nodeFuncs.h" #include "optimizer/clauses.h" +#include "optimizer/planmain.h" #include "parser/parsetree.h" #include "rewrite/rewriteHandler.h" #include "tcop/tcopprot.h" @@ -572,6 +573,7 @@ void ExplainPrintPlan(ExplainState *es, QueryDesc *queryDesc) { Bitmapset *rels_used = NULL; + PlanState *ps; Assert(queryDesc->plannedstmt != NULL); es->pstmt = queryDesc->plannedstmt; @@ -580,7 +582,17 @@ ExplainPrintPlan(ExplainState *es, QueryDesc *queryDesc) es->rtable_names = select_rtable_names_for_explain(es->rtable, rels_used); es->deparse_cxt = deparse_context_for_plan_rtable(es->rtable, es->rtable_names); - ExplainNode(queryDesc->planstate, NIL, NULL, NULL, es); + + /* + * Sometimes we mark a Gather node as "invisible", which means that it's + * not displayed in EXPLAIN output. The purpose of this is to allow + * running regression tests with force_parallel_mode=regress to get the + * same results as running the same tests with force_parallel_mode=off. + */ + ps = queryDesc->planstate; + if (IsA(ps, GatherState) &&((Gather *) ps->plan)->invisible) + ps = outerPlanState(ps); + ExplainNode(ps, NIL, NULL, NULL, es); } /* |