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rewrite tq read handle

This commit is contained in:
Liu Jicong 2022-04-21 13:56:37 +08:00
parent 8b1e51d910
commit 9225155119
1 changed files with 20 additions and 16 deletions
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36
source/dnode/vnode/src/tq/tqRead.c
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@ -91,7 +91,7 @@ int tqRetrieveDataBlockInfo(STqReadHandle* pHandle, SDataBlockInfo* pBlockInfo)
return 0;
}
SArray* tqRetrieveDataBlock(STqReadHandle* pHandle) {
int32_t tqRetrieveDataBlock(SArray** ppCols, STqReadHandle* pHandle, int16_t* pGroupId, int32_t* pNumOfRows) {
/*int32_t sversion = pHandle->pBlock->sversion;*/
// TODO set to real sversion
int32_t sversion = 0;
@ -112,7 +112,7 @@ SArray* tqRetrieveDataBlock(STqReadHandle* pHandle) {
STSchema* pTschema = pHandle->pSchema;
SSchemaWrapper* pSchemaWrapper = pHandle->pSchemaWrapper;
int32_t numOfRows = pHandle->pBlock->numOfRows;
*pNumOfRows = pHandle->pBlock->numOfRows;
/*int32_t numOfCols = pHandle->pSchema->numOfCols;*/
int32_t colNumNeed = taosArrayGetSize(pHandle->pColIdList);
@ -120,10 +120,11 @@ SArray* tqRetrieveDataBlock(STqReadHandle* pHandle) {
colNumNeed = pSchemaWrapper->nCols;
}
SArray* pArray = taosArrayInit(colNumNeed, sizeof(SColumnInfoData));
if (pArray == NULL) {
return NULL;
*ppCols = taosArrayInit(colNumNeed, sizeof(SColumnInfoData));
if (*ppCols == NULL) {
return -1;
}
int32_t colMeta = 0;
int32_t colNeed = 0;
while (colMeta < pSchemaWrapper->nCols && colNeed < colNumNeed) {
@ -136,21 +137,24 @@ SArray* tqRetrieveDataBlock(STqReadHandle* pHandle) {
colNeed++;
} else {
SColumnInfoData colInfo = {0};
/*int sz = numOfRows * pColSchema->bytes;*/
colInfo.info.bytes = pColSchema->bytes;
colInfo.info.colId = pColSchema->colId;
colInfo.info.type = pColSchema->type;
if (colInfoDataEnsureCapacity(&colInfo, 0, numOfRows) < 0) {
taosArrayDestroyEx(pArray, (void (*)(void*))tDeleteSSDataBlock);
return NULL;
goto FAIL;
}
taosArrayPush(pArray, &colInfo);
taosArrayPush(*ppCols, &colInfo);
colMeta++;
colNeed++;
}
}
int32_t colActual = taosArrayGetSize(*ppCols);
// TODO in stream shuffle case, fetch groupId
*pGroupId = 0;
STSRowIter iter = {0};
tdSTSRowIterInit(&iter, pTschema);
STSRow* row;
@ -159,22 +163,22 @@ SArray* tqRetrieveDataBlock(STqReadHandle* pHandle) {
while ((row = tGetSubmitBlkNext(&pHandle->blkIter)) != NULL) {
tdSTSRowIterReset(&iter, row);
// get all wanted col of that block
int32_t colTot = taosArrayGetSize(pArray);
for (int32_t i = 0; i < colTot; i++) {
SColumnInfoData* pColData = taosArrayGet(pArray, i);
for (int32_t i = 0; i < colActual; i++) {
SColumnInfoData* pColData = taosArrayGet(*ppCols, i);
SCellVal sVal = {0};
if (!tdSTSRowIterNext(&iter, pColData->info.colId, pColData->info.type, &sVal)) {
break;
}
/*if (colDataAppend(pColData, curRow, sVal.val, false) < 0) {*/
if (colDataAppend(pColData, curRow, sVal.val, sVal.valType == TD_VTYPE_NULL) < 0) {
taosArrayDestroyEx(pArray, (void (*)(void*))tDeleteSSDataBlock);
return NULL;
goto FAIL;
}
}
curRow++;
}
return pArray;
return 0;
FAIL:
taosArrayDestroy(*ppCols);
return -1;
}
void tqReadHandleSetColIdList(STqReadHandle* pReadHandle, SArray* pColIdList) { pReadHandle->pColIdList = pColIdList; }