diff options
| -rw-r--r-- | src/backend/executor/execAmi.c | 5 | ||||
| -rw-r--r-- | src/backend/optimizer/util/plancat.c | 2 | ||||
| -rw-r--r-- | src/include/nodes/relation.h | 1 |
3 files changed, 8 insertions, 0 deletions
diff --git a/src/backend/executor/execAmi.c b/src/backend/executor/execAmi.c index 9e784219786..b01ef446734 100644 --- a/src/backend/executor/execAmi.c +++ b/src/backend/executor/execAmi.c @@ -413,6 +413,11 @@ ExecSupportsMarkRestore(Path *pathnode) { case T_IndexScan: case T_IndexOnlyScan: + /* + * Not all index types support mark/restore. + */ + return castNode(IndexPath, pathnode)->indexinfo->amcanmarkpos; + case T_Material: case T_Sort: return true; diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c index d99d1393fb4..c8bab50e89c 100644 --- a/src/backend/optimizer/util/plancat.c +++ b/src/backend/optimizer/util/plancat.c @@ -275,6 +275,8 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent, info->amcanparallel = amroutine->amcanparallel; info->amhasgettuple = (amroutine->amgettuple != NULL); info->amhasgetbitmap = (amroutine->amgetbitmap != NULL); + info->amcanmarkpos = (amroutine->ammarkpos != NULL && + amroutine->amrestrpos != NULL); info->amcostestimate = amroutine->amcostestimate; Assert(info->amcostestimate != NULL); diff --git a/src/include/nodes/relation.h b/src/include/nodes/relation.h index ffeb3eb1fee..098116b0d8b 100644 --- a/src/include/nodes/relation.h +++ b/src/include/nodes/relation.h @@ -809,6 +809,7 @@ typedef struct IndexOptInfo bool amhasgettuple; /* does AM have amgettuple interface? */ bool amhasgetbitmap; /* does AM have amgetbitmap interface? */ bool amcanparallel; /* does AM support parallel scan? */ + bool amcanmarkpos; /* does AM support mark/restore? */ /* Rather than include amapi.h here, we declare amcostestimate like this */ void (*amcostestimate) (); /* AM's cost estimator */ } IndexOptInfo; |