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code for Global-Partition-Index feature

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Signed-off-by: xiliu <xiliu_h@163.com>
This commit is contained in:
xiliu
2020-08-25 15:10:14 +08:00
parent 339cd59f26
commit c040d78287
157 changed files with 12502 additions and 939 deletions
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23
src/gausskernel/runtime/executor/nodeIndexonlyscan.cpp
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@ -97,6 +97,15 @@ static TupleTableSlot* IndexOnlyNext(IndexOnlyScanState* node)
* reading the TID; and (2) is satisfied by the acquisition of the
* buffer content lock in order to insert the TID.
*/
if (IndexScanNeedSwitchPartRel(indexScan)) {
/*
* Change the heapRelation in indexScanDesc to Partition Relation of current index
*/
if (!GPIGetNextPartRelation(indexScan->xs_gpi_scan, CurrentMemoryContext, AccessShareLock)) {
continue;
}
indexScan->heapRelation = indexScan->xs_gpi_scan->fakePartRelation;
}
if (!visibilitymap_test(indexScan->heapRelation, ItemPointerGetBlockNumber(tid), &node->ioss_VMBuffer)) {
/*
* Rats, we have to visit the heap to check visibility.
@ -286,16 +295,16 @@ void ExecReScanIndexOnlyScan(IndexOnlyScanState* node)
if (!PointerIsValid(node->ss.partitions)) {
return;
}
Assert(PointerIsValid(node->ioss_ScanDesc));
Assert(PointerIsValid(node->ioss_ScanDesc));
abs_idx_endscan(node->ioss_ScanDesc);
/* initialize to scan the next partition */
ExecInitNextIndexPartitionForIndexScanOnly(node);
/* initialize to scan the next partition */
ExecInitNextIndexPartitionForIndexScanOnly(node);
ExecScanReScan(&node->ss);
/*
* give up rescaning the index if there is no partition to scan
*/
return;
/*
* give up rescaning the index if there is no partition to scan
*/
return;
}
}