diff options
Diffstat (limited to 'src/backend/optimizer/util/pathnode.c')
| -rw-r--r-- | src/backend/optimizer/util/pathnode.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/backend/optimizer/util/pathnode.c b/src/backend/optimizer/util/pathnode.c index 4336ca1b782..1895a6894a3 100644 --- a/src/backend/optimizer/util/pathnode.c +++ b/src/backend/optimizer/util/pathnode.c @@ -1308,6 +1308,32 @@ create_unique_path(PlannerInfo *root, RelOptInfo *rel, Path *subpath, } /* + * create_gather_path + * + * Creates a path corresponding to a gather scan, returning the + * pathnode. + */ +GatherPath * +create_gather_path(PlannerInfo *root, RelOptInfo *rel, Path *subpath, + Relids required_outer, int nworkers) +{ + GatherPath *pathnode = makeNode(GatherPath); + + pathnode->path.pathtype = T_Gather; + pathnode->path.parent = rel; + pathnode->path.param_info = get_baserel_parampathinfo(root, rel, + required_outer); + pathnode->path.pathkeys = NIL; /* Gather has unordered result */ + + pathnode->subpath = subpath; + pathnode->num_workers = nworkers; + + cost_gather(pathnode, root, rel, pathnode->path.param_info); + + return pathnode; +} + +/* * translate_sub_tlist - get subquery column numbers represented by tlist * * The given targetlist usually contains only Vars referencing the given relid. |