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Fix misread of colocation id

moonshot/custom-path
Nils Dijk 2020-01-20 18:51:42 +01:00
parent f858efd2f2
commit 2937d4edc9
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GPG Key ID: CA1177EF9434F241
1 changed files with 3 additions and 2 deletions
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5
src/backend/distributed/planner/path_based_planner.c
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@ -238,6 +238,9 @@ OptimizeJoinPath(Path *originalPath)
HashPath *hpath = castNode(HashPath, originalPath); HashPath *hpath = castNode(HashPath, originalPath);
if (CanOptimizeHashPath(hpath)) if (CanOptimizeHashPath(hpath))
{ {
/* we can only optimize the Distributed union if the colocationId's are the same, taking any would suffice */
uint32 colocationId = ((DistributedUnionPath *) hpath->jpath.innerjoinpath)->colocationId;
hpath->jpath.innerjoinpath = ((DistributedUnionPath *)hpath->jpath.innerjoinpath)->worker_path; hpath->jpath.innerjoinpath = ((DistributedUnionPath *)hpath->jpath.innerjoinpath)->worker_path;
hpath->jpath.outerjoinpath = ((DistributedUnionPath *)hpath->jpath.outerjoinpath)->worker_path; hpath->jpath.outerjoinpath = ((DistributedUnionPath *)hpath->jpath.outerjoinpath)->worker_path;
@ -245,8 +248,6 @@ OptimizeJoinPath(Path *originalPath)
hpath->jpath.path.startup_cost -= 2000; /* remove the double dist union cost */ hpath->jpath.path.startup_cost -= 2000; /* remove the double dist union cost */
hpath->jpath.path.total_cost -= 2000; /* remove the double dist union cost */ hpath->jpath.path.total_cost -= 2000; /* remove the double dist union cost */
/* we can only optimize the Distributed union if the colocationId's are the same, taking any would suffice */
uint32 colocationId = ((DistributedUnionPath *) hpath->jpath.innerjoinpath)->colocationId;
return (Path *) WrapTableAccessWithDistributedUnion((Path *) hpath, colocationId); return (Path *) WrapTableAccessWithDistributedUnion((Path *) hpath, colocationId);
} }
} }