| 666 | } /* cdbpath_create_motion_path */ |
| 667 | |
| 668 | Path * |
| 669 | cdbpath_create_explicit_motion_path(PlannerInfo *root, |
| 670 | Path *subpath, |
| 671 | CdbPathLocus locus) |
| 672 | { |
| 673 | CdbMotionPath *pathnode; |
| 674 | |
| 675 | /* Create CdbMotionPath node. */ |
| 676 | pathnode = makeNode(CdbMotionPath); |
| 677 | pathnode->path.pathtype = T_Motion; |
| 678 | pathnode->path.parent = subpath->parent; |
| 679 | /* Motion doesn't project, so use source path's pathtarget */ |
| 680 | pathnode->path.pathtarget = subpath->pathtarget; |
| 681 | pathnode->path.locus = locus; |
| 682 | pathnode->path.rows = subpath->rows; |
| 683 | pathnode->path.pathkeys = NIL; |
| 684 | |
| 685 | /* GPDB_96_MERGE_FIXME: When is a Motion path parallel-safe? I tried |
| 686 | * setting this to 'false' initially, to play it safe, but somehow |
| 687 | * the Paths with motions ended up in gather plans anyway, and tripped |
| 688 | * assertion failures. |
| 689 | */ |
| 690 | pathnode->path.parallel_aware = false; |
| 691 | pathnode->path.parallel_safe = false; |
| 692 | pathnode->path.parallel_workers = subpath->parallel_workers; |
| 693 | |
| 694 | pathnode->subpath = subpath; |
| 695 | pathnode->is_explicit_motion = true; |
| 696 | |
| 697 | /* Cost of motion */ |
| 698 | cdbpath_cost_motion(root, pathnode); |
| 699 | |
| 700 | /* Tell operators above us that slack may be needed for deadlock safety. */ |
| 701 | pathnode->path.motionHazard = true; |
| 702 | pathnode->path.barrierHazard = false; |
| 703 | pathnode->path.rescannable = false; |
| 704 | |
| 705 | return (Path *) pathnode; |
| 706 | } |
| 707 | |
| 708 | Path * |
| 709 | cdbpath_create_broadcast_motion_path(PlannerInfo *root, |
no test coverage detected