diff options
| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2022-12-02 10:35:55 +0100 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2022-12-02 10:35:55 +0100 |
| commit | fb958b5da86da69651f6fb9f540c2cfb1346cdc5 (patch) | |
| tree | a059d6e4ceab797bc94f2212a5d748f5e1b3fa6d /src/backend/executor/execMain.c | |
| parent | 40b1491357a4a092ea054176944cf76e2fe3eff8 (diff) | |
| download | postgresql-fb958b5da86da69651f6fb9f540c2cfb1346cdc5.tar.gz postgresql-fb958b5da86da69651f6fb9f540c2cfb1346cdc5.zip | |
Generalize ri_RootToPartitionMap to use for non-partition children
ri_RootToPartitionMap is currently only initialized for tuple routing
target partitions, though a future commit will need the ability to use
it even for the non-partition child tables, so make adjustments to the
decouple it from the partitioning code.
Also, make it lazily initialized via ExecGetRootToChildMap(), making
that function its preferred access path. Existing third-party code
accessing it directly should no longer do so; consequently, it's been
renamed to ri_RootToChildMap, which also makes it consistent with
ri_ChildToRootMap.
ExecGetRootToChildMap() houses the logic of setting the map appropriately
depending on whether a given child relation is partition or not.
To support this, also add a separate entry point for TupleConversionMap
creation that receives an AttrMap. No new code here, just split an
existing function in two.
Author: Amit Langote <amitlangote09@gmail.com>
Discussion: https://postgr.es/m/CA+HiwqEYUhDXSK5BTvG_xk=eaAEJCD4GS3C6uH7ybBvv+Z_Tmg@mail.gmail.com
Diffstat (limited to 'src/backend/executor/execMain.c')
| -rw-r--r-- | src/backend/executor/execMain.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/backend/executor/execMain.c b/src/backend/executor/execMain.c index b6751da5743..12ff4f3de58 100644 --- a/src/backend/executor/execMain.c +++ b/src/backend/executor/execMain.c @@ -1256,9 +1256,11 @@ InitResultRelInfo(ResultRelInfo *resultRelInfo, * this field is filled in ExecInitModifyTable(). */ resultRelInfo->ri_RootResultRelInfo = partition_root_rri; - resultRelInfo->ri_RootToPartitionMap = NULL; /* set by - * ExecInitRoutingInfo */ - resultRelInfo->ri_PartitionTupleSlot = NULL; /* ditto */ + /* Set by ExecGetRootToChildMap */ + resultRelInfo->ri_RootToChildMap = NULL; + resultRelInfo->ri_RootToChildMapValid = false; + /* Set by ExecInitRoutingInfo */ + resultRelInfo->ri_PartitionTupleSlot = NULL; resultRelInfo->ri_ChildToRootMap = NULL; resultRelInfo->ri_ChildToRootMapValid = false; resultRelInfo->ri_CopyMultiInsertBuffer = NULL; |