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Merge pull request #17236 from taosdata/feature/3_liaohj 

enh(query): optimize the perf for ordinary table query
This commit is contained in:
Shengliang Guan 2022-10-09 17:01:28 +08:00 committed by GitHub
parent ba912cdfc0 5402f6bc26
commit 329b76edad
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 24 additions and 9 deletions
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27
source/dnode/vnode/src/tsdb/tsdbMergeTree.c
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@ -235,8 +235,13 @@ static int32_t binarySearchForStartRowIndex(uint64_t* uidList, int32_t num, uint
}
}
static bool queryChildTable(uint64_t suid) {
return suid != 0;
}
int32_t tLDataIterOpen(struct SLDataIter **pIter, SDataFReader *pReader, int32_t iStt, int8_t backward, uint64_t suid,
uint64_t uid, STimeWindow *pTimeWindow, SVersionRange *pRange, SSttBlockLoadInfo* pBlockLoadInfo) {
uint64_t uid, STimeWindow *pTimeWindow, SVersionRange *pRange, SSttBlockLoadInfo* pBlockLoadInfo,
const char* idStr) {
int32_t code = 0;
*pIter = taosMemoryCalloc(1, sizeof(SLDataIter));
if (*pIter == NULL) {
@ -252,12 +257,19 @@ int32_t tLDataIterOpen(struct SLDataIter **pIter, SDataFReader *pReader, int32_t
(*pIter)->timeWindow = *pTimeWindow;
(*pIter)->pBlockLoadInfo = pBlockLoadInfo;
if (taosArrayGetSize(pBlockLoadInfo->aSttBlk) == 0) {
size_t size = taosArrayGetSize(pBlockLoadInfo->aSttBlk);
if (size == 0) {
int64_t st = taosGetTimestampUs();
code = tsdbReadSttBlk(pReader, iStt, pBlockLoadInfo->aSttBlk);
if (code) {
goto _exit;
} else {
size_t size = taosArrayGetSize(pBlockLoadInfo->aSttBlk);
}
// only apply to the child tables, ordinary tables will not incur this filter procedure.
if (queryChildTable(suid)) {
size = taosArrayGetSize(pBlockLoadInfo->aSttBlk);
SArray *pTmp = taosArrayInit(size, sizeof(SSttBlk));
for (int32_t i = 0; i < size; ++i) {
SSttBlk *p = taosArrayGet(pBlockLoadInfo->aSttBlk, i);
@ -269,9 +281,12 @@ int32_t tLDataIterOpen(struct SLDataIter **pIter, SDataFReader *pReader, int32_t
taosArrayDestroy(pBlockLoadInfo->aSttBlk);
pBlockLoadInfo->aSttBlk = pTmp;
}
double el = (taosGetTimestampUs() - st)/1000.0;
tsdbDebug("load the last file info completed, elapsed time:%.2fms, %s", el, idStr);
}
size_t size = taosArrayGetSize(pBlockLoadInfo->aSttBlk);
size = taosArrayGetSize(pBlockLoadInfo->aSttBlk);
// find the start block
(*pIter)->iSttBlk = binarySearchForStartBlock(pBlockLoadInfo->aSttBlk->pData, size, uid, backward);
@ -493,7 +508,7 @@ int32_t tMergeTreeOpen(SMergeTree *pMTree, int8_t backward, SDataFReader *pFRead
for (int32_t i = 0; i < pFReader->pSet->nSttF; ++i) { // open all last file
struct SLDataIter* pIter = NULL;
code = tLDataIterOpen(&pIter, pFReader, i, pMTree->backward, suid, uid, pTimeWindow, pVerRange, &pMTree->pLoadInfo[i]);
code = tLDataIterOpen(&pIter, pFReader, i, pMTree->backward, suid, uid, pTimeWindow, pVerRange, &pMTree->pLoadInfo[i], pMTree->idStr);
if (code != TSDB_CODE_SUCCESS) {
goto _end;
}