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Merge pull request #2748 from citusdata/ScanStateGetTupleDescriptor 

Refactor some scan state info into their own functions.
pull/2750/head
Hadi Moshayedi 2019-06-05 09:22:00 -07:00 committed by GitHub
parent 7abd28d3e8 85325e0098
commit 674b7ce29a
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 37 additions and 13 deletions
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24
src/backend/distributed/executor/citus_custom_scan.c
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@ -308,7 +308,7 @@ static void
CitusReScan(CustomScanState *node)
{
CitusScanState *scanState = (CitusScanState *) node;
EState *executorState = scanState->customScanState.ss.ps.state;
EState *executorState = ScanStateGetExecutorState(scanState);
ParamListInfo paramListInfo = executorState->es_param_list_info;
if (paramListInfo != NULL)
@ -318,3 +318,25 @@ CitusReScan(CustomScanState *node)
"parameters are currently unsupported")));
}
}
/*
* ScanStateGetTupleDescriptor returns the tuple descriptor for the given
* scan state.
*/
TupleDesc
ScanStateGetTupleDescriptor(CitusScanState *scanState)
{
return scanState->customScanState.ss.ps.ps_ResultTupleSlot->tts_tupleDescriptor;
}
/*
* ScanStateGetExecutorState returns the executor state for the given scan
* state.
*/
EState *
ScanStateGetExecutorState(CitusScanState *scanState)
{
return scanState->customScanState.ss.ps.state;
}

2
src/backend/distributed/executor/insert_select_executor.c
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@ -63,7 +63,7 @@ CoordinatorInsertSelectExecScan(CustomScanState *node)
if (!scanState->finishedRemoteScan)
{
EState *executorState = scanState->customScanState.ss.ps.state;
EState *executorState = ScanStateGetExecutorState(scanState);
DistributedPlan *distributedPlan = scanState->distributedPlan;
Query *selectQuery = distributedPlan->insertSelectSubquery;
List *insertTargetList = distributedPlan->insertTargetList;

6
src/backend/distributed/executor/multi_executor.c
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@ -237,6 +237,7 @@ ReturnTupleFromTuplestore(CitusScanState *scanState)
{
Tuplestorestate *tupleStore = scanState->tuplestorestate;
TupleTableSlot *resultSlot = NULL;
EState *executorState = NULL;
ScanDirection scanDirection = NoMovementScanDirection;
bool forwardScanDirection = true;
@ -245,7 +246,8 @@ ReturnTupleFromTuplestore(CitusScanState *scanState)
return NULL;
}
scanDirection = scanState->customScanState.ss.ps.state->es_direction;
executorState = ScanStateGetExecutorState(scanState);
scanDirection = executorState->es_direction;
Assert(ScanDirectionIsValid(scanDirection));
if (ScanDirectionIsBackward(scanDirection))
@ -279,7 +281,7 @@ LoadTuplesIntoTupleStore(CitusScanState *citusScanState, Job *workerJob)
bool interTransactions = false;
char *copyFormat = "text";
tupleDescriptor = customScanState.ss.ps.ps_ResultTupleSlot->tts_tupleDescriptor;
tupleDescriptor = ScanStateGetTupleDescriptor(citusScanState);
Assert(citusScanState->tuplestorestate == NULL);
citusScanState->tuplestorestate =

16
src/backend/distributed/executor/multi_router_executor.c
View File

@ -624,8 +624,7 @@ RouterModifyExecScan(CustomScanState *node)
static void
SortTupleStore(CitusScanState *scanState)
{
TupleDesc tupleDescriptor =
scanState->customScanState.ss.ps.ps_ResultTupleSlot->tts_tupleDescriptor;
TupleDesc tupleDescriptor = ScanStateGetTupleDescriptor(scanState);
Tuplestorestate *tupleStore = scanState->tuplestorestate;
List *targetList = scanState->customScanState.ss.ps.plan->targetlist;
@ -735,7 +734,7 @@ RouterSequentialModifyExecScan(CustomScanState *node)
List *taskList = workerJob->taskList;
ListCell *taskCell = NULL;
bool multipleTasks = list_length(taskList) > 1;
EState *executorState = scanState->customScanState.ss.ps.state;
EState *executorState = ScanStateGetExecutorState(scanState);
bool taskListRequires2PC = TaskListRequires2PC(taskList);
bool alwaysThrowErrorOnFailure = false;
CmdType operation = scanState->distributedPlan->operation;
@ -906,8 +905,8 @@ RouterSelectExecScan(CustomScanState *node)
static void
ExecuteSingleSelectTask(CitusScanState *scanState, Task *task)
{
ParamListInfo paramListInfo =
scanState->customScanState.ss.ps.state->es_param_list_info;
EState *executorState = ScanStateGetExecutorState(scanState);
ParamListInfo paramListInfo = executorState->es_param_list_info;
List *taskPlacementList = task->taskPlacementList;
ListCell *taskPlacementCell = NULL;
char *queryString = task->queryString;
@ -1105,7 +1104,7 @@ ExecuteSingleModifyTask(CitusScanState *scanState, Task *task, CmdType operation
if (scanState)
{
executorState = scanState->customScanState.ss.ps.state;
executorState = ScanStateGetExecutorState(scanState);
paramListInfo = executorState->es_param_list_info;
}
@ -1351,7 +1350,7 @@ void
ExecuteMultipleTasks(CitusScanState *scanState, List *taskList,
bool isModificationQuery, bool expectResults)
{
EState *executorState = scanState->customScanState.ss.ps.state;
EState *executorState = ScanStateGetExecutorState(scanState);
ParamListInfo paramListInfo = executorState->es_param_list_info;
int64 affectedTupleCount = -1;
@ -1815,8 +1814,7 @@ StoreQueryResult(CitusScanState *scanState, MultiConnection *connection,
bool alwaysThrowErrorOnFailure, int64 *rows,
DistributedExecutionStats *executionStats)
{
TupleDesc tupleDescriptor =
scanState->customScanState.ss.ps.ps_ResultTupleSlot->tts_tupleDescriptor;
TupleDesc tupleDescriptor = ScanStateGetTupleDescriptor(scanState);
AttInMetadata *attributeInputMetadata = TupleDescGetAttInMetadata(tupleDescriptor);
List *targetList = scanState->customScanState.ss.ps.plan->targetlist;
uint32 expectedColumnCount = ExecCleanTargetListLength(targetList);

2
src/include/distributed/citus_custom_scan.h
View File

@ -37,5 +37,7 @@ extern CustomScanMethods DelayedErrorCustomScanMethods;
extern void RegisterCitusCustomScanMethods(void);
extern void CitusExplainScan(CustomScanState *node, List *ancestors, struct
ExplainState *es);
extern TupleDesc ScanStateGetTupleDescriptor(CitusScanState *scanState);
extern EState * ScanStateGetExecutorState(CitusScanState *scanState);
#endif /* CITUS_CUSTOM_SCAN_H */