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Move partition_tuple_slot out of EState.

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Commit 2ac3ef7a01df859c62d0a02333b646d65eaec5ff added a TupleTapleSlot
for partition tuple slot to EState (es_partition_tuple_slot) but it's
more logical to have it as part of ModifyTableState
(mt_partition_tuple_slot) and CopyState (partition_tuple_slot).

Discussion: http://postgr.es/m/1bd459d9-4c0c-197a-346e-e5e59e217d97@lab.ntt.co.jp

Amit Langote, per a gripe from me
This commit is contained in:
Robert Haas 2017-01-04 13:05:29 -05:00
parent 6667d9a6d7
commit 345b2dcf07
5 changed files with 35 additions and 25 deletions
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26
src/backend/commands/copy.c
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@ -161,11 +161,14 @@ typedef struct CopyStateData
ExprState **defexprs; /* array of default att expressions */
bool volatile_defexprs; /* is any of defexprs volatile? */
List *range_table;
PartitionDispatch *partition_dispatch_info;
int num_dispatch;
int num_partitions;
ResultRelInfo *partitions;
int num_dispatch; /* Number of entries in the above array */
int num_partitions; /* Number of members in the following
* arrays */
ResultRelInfo *partitions; /* Per partition result relation */
TupleConversionMap **partition_tupconv_maps;
TupleTableSlot *partition_tuple_slot;
/*
* These variables are used to reduce overhead in textual COPY FROM.
@ -1409,6 +1412,7 @@ BeginCopy(ParseState *pstate,
PartitionDispatch *partition_dispatch_info;
ResultRelInfo *partitions;
TupleConversionMap **partition_tupconv_maps;
TupleTableSlot *partition_tuple_slot;
int num_parted,
num_partitions;
@ -1416,12 +1420,14 @@ BeginCopy(ParseState *pstate,
&partition_dispatch_info,
&partitions,
&partition_tupconv_maps,
&partition_tuple_slot,
&num_parted, &num_partitions);
cstate->partition_dispatch_info = partition_dispatch_info;
cstate->num_dispatch = num_parted;
cstate->partitions = partitions;
cstate->num_partitions = num_partitions;
cstate->partition_tupconv_maps = partition_tupconv_maps;
cstate->partition_tuple_slot = partition_tuple_slot;
}
}
else
@ -2435,15 +2441,6 @@ CopyFrom(CopyState cstate)
/* Triggers might need a slot as well */
estate->es_trig_tuple_slot = ExecInitExtraTupleSlot(estate);
/*
* Initialize a dedicated slot to manipulate tuples of any given
* partition's rowtype.
*/
if (cstate->partition_dispatch_info)
estate->es_partition_tuple_slot = ExecInitExtraTupleSlot(estate);
else
estate->es_partition_tuple_slot = NULL;
/*
* It's more efficient to prepare a bunch of tuples for insertion, and
* insert them in one heap_multi_insert() call, than call heap_insert()
@ -2591,7 +2588,7 @@ CopyFrom(CopyState cstate)
* we're finished dealing with the partition.
*/
oldslot = slot;
slot = estate->es_partition_tuple_slot;
slot = cstate->partition_tuple_slot;
Assert(slot != NULL);
ExecSetSlotDescriptor(slot, RelationGetDescr(partrel));
ExecStoreTuple(tuple, slot, InvalidBuffer, true);
@ -2756,6 +2753,9 @@ CopyFrom(CopyState cstate)
ExecCloseIndices(resultRelInfo);
heap_close(resultRelInfo->ri_RelationDesc, NoLock);
}
/* Release the standalone partition tuple descriptor */
ExecDropSingleTupleTableSlot(cstate->partition_tuple_slot);
}
FreeExecutorState(estate);

12
src/backend/executor/execMain.c
View File

@ -3012,6 +3012,9 @@ EvalPlanQualEnd(EPQState *epqstate)
* entry for every leaf partition (required to convert input tuple based
* on the root table's rowtype to a leaf partition's rowtype after tuple
* routing is done
* 'partition_tuple_slot' receives a standalone TupleTableSlot to be used
* to manipulate any given leaf partition's rowtype after that partition
* is chosen by tuple-routing.
* 'num_parted' receives the number of partitioned tables in the partition
* tree (= the number of entries in the 'pd' output array)
* 'num_partitions' receives the number of leaf partitions in the partition
@ -3026,6 +3029,7 @@ ExecSetupPartitionTupleRouting(Relation rel,
PartitionDispatch **pd,
ResultRelInfo **partitions,
TupleConversionMap ***tup_conv_maps,
TupleTableSlot **partition_tuple_slot,
int *num_parted, int *num_partitions)
{
TupleDesc tupDesc = RelationGetDescr(rel);
@ -3043,6 +3047,14 @@ ExecSetupPartitionTupleRouting(Relation rel,
*tup_conv_maps = (TupleConversionMap **) palloc0(*num_partitions *
sizeof(TupleConversionMap *));
/*
* Initialize an empty slot that will be used to manipulate tuples of any
* given partition's rowtype. It is attached to the caller-specified node
* (such as ModifyTableState) and released when the node finishes
* processing.
*/
*partition_tuple_slot = MakeTupleTableSlot();
leaf_part_rri = *partitions;
i = 0;
foreach(cell, leaf_parts)

17
src/backend/executor/nodeModifyTable.c
View File

@ -329,7 +329,7 @@ ExecInsert(ModifyTableState *mtstate,
* Use the dedicated slot for that.
*/
oldslot = slot;
slot = estate->es_partition_tuple_slot;
slot = mtstate->mt_partition_tuple_slot;
Assert(slot != NULL);
ExecSetSlotDescriptor(slot, RelationGetDescr(partrel));
ExecStoreTuple(tuple, slot, InvalidBuffer, true);
@ -1738,6 +1738,7 @@ ExecInitModifyTable(ModifyTable *node, EState *estate, int eflags)
PartitionDispatch *partition_dispatch_info;
ResultRelInfo *partitions;
TupleConversionMap **partition_tupconv_maps;
TupleTableSlot *partition_tuple_slot;
int num_parted,
num_partitions;
@ -1745,21 +1746,15 @@ ExecInitModifyTable(ModifyTable *node, EState *estate, int eflags)
&partition_dispatch_info,
&partitions,
&partition_tupconv_maps,
&partition_tuple_slot,
&num_parted, &num_partitions);
mtstate->mt_partition_dispatch_info = partition_dispatch_info;
mtstate->mt_num_dispatch = num_parted;
mtstate->mt_partitions = partitions;
mtstate->mt_num_partitions = num_partitions;
mtstate->mt_partition_tupconv_maps = partition_tupconv_maps;
/*
* Initialize a dedicated slot to manipulate tuples of any given
* partition's rowtype.
*/
estate->es_partition_tuple_slot = ExecInitExtraTupleSlot(estate);
mtstate->mt_partition_tuple_slot = partition_tuple_slot;
}
else
estate->es_partition_tuple_slot = NULL;
/*
* Initialize any WITH CHECK OPTION constraints if needed.
@ -2100,6 +2095,10 @@ ExecEndModifyTable(ModifyTableState *node)
heap_close(resultRelInfo->ri_RelationDesc, NoLock);
}
/* Release the standalone partition tuple descriptor, if any */
if (node->mt_partition_tuple_slot)
ExecDropSingleTupleTableSlot(node->mt_partition_tuple_slot);
/*
* Free the exprcontext
*/

1
src/include/executor/executor.h
View File

@ -217,6 +217,7 @@ extern void ExecSetupPartitionTupleRouting(Relation rel,
PartitionDispatch **pd,
ResultRelInfo **partitions,
TupleConversionMap ***tup_conv_maps,
TupleTableSlot **partition_tuple_slot,
int *num_parted, int *num_partitions);
extern int ExecFindPartition(ResultRelInfo *resultRelInfo,
PartitionDispatch *pd,

4
src/include/nodes/execnodes.h
View File

@ -384,9 +384,6 @@ typedef struct EState
TupleTableSlot *es_trig_oldtup_slot; /* for TriggerEnabled */
TupleTableSlot *es_trig_newtup_slot; /* for TriggerEnabled */
/* Slot used to manipulate a tuple after it is routed to a partition */
TupleTableSlot *es_partition_tuple_slot;
/* Parameter info: */
ParamListInfo es_param_list_info; /* values of external params */
ParamExecData *es_param_exec_vals; /* values of internal params */
@ -1165,6 +1162,7 @@ typedef struct ModifyTableState
ResultRelInfo *mt_partitions; /* Per partition result relation */
TupleConversionMap **mt_partition_tupconv_maps;
/* Per partition tuple conversion map */
TupleTableSlot *mt_partition_tuple_slot;
} ModifyTableState;
/* ----------------