diff options
| author | Ashutosh Bapat | 2011-12-22 06:32:05 +0000 |
|---|---|---|
| committer | Ashutosh Bapat | 2011-12-22 06:32:05 +0000 |
| commit | 1b244c116e9cb93253c37236cf722072a719b0e4 (patch) | |
| tree | 71fa4f4ca9f1dd3c5ad40a1392ff5c3e5bbeaa97 /src/backend/optimizer | |
| parent | 2140b647f169e236dbe652106245e240ce2aa865 (diff) | |
Add following GUCs related to optimizations during remote query planning
1. enable_remotegroup - to enable or disable remote grouping optimization in
create_remotegrouping_plan().
2. enable_fast_query_shipping - to enable or disable fast query shipping.
These GUCs are to be used only for debugging, and should not be used in
production environment or user deployments.
Diffstat (limited to 'src/backend/optimizer')
| -rw-r--r-- | src/backend/optimizer/path/costsize.c | 1 | ||||
| -rw-r--r-- | src/backend/optimizer/plan/createplan.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/optimizer/path/costsize.c b/src/backend/optimizer/path/costsize.c index 45a4f39169..d3b0e279fe 100644 --- a/src/backend/optimizer/path/costsize.c +++ b/src/backend/optimizer/path/costsize.c @@ -120,6 +120,7 @@ bool enable_mergejoin = true; bool enable_hashjoin = true; #ifdef PGXC bool enable_remotejoin = true; +bool enable_remotegroup = true; #endif typedef struct diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c index 4d94232a7d..57420d589a 100644 --- a/src/backend/optimizer/plan/createplan.c +++ b/src/backend/optimizer/plan/createplan.c @@ -5840,6 +5840,9 @@ create_remotegrouping_plan(PlannerInfo *root, Plan *local_plan) List *remote_qual; List *local_qual; + /* Remote grouping is not enabled, don't do anything */ + if (!enable_remotegroup) + return local_plan; /* * We don't push aggregation and grouping to datanodes, in case there are * windowing aggregates, distinct, having clause or sort clauses. |