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cache/reader: move pLastCols into single block

This commit is contained in:
Minglei Jin 2023-08-02 11:10:12 +08:00
parent 95cc540d9b
commit 7fca057a81
1 changed files with 19 additions and 19 deletions
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38
source/dnode/vnode/src/tsdb/tsdbCacheRead.c
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@ -277,7 +277,6 @@ int32_t tsdbRetrieveCacheRows(void* pReader, SSDataBlock* pResBlock, const int32
int32_t code = TSDB_CODE_SUCCESS;
SArray* pRow = taosArrayInit(TARRAY_SIZE(pr->pCidList), sizeof(SLastCol));
bool hasRes = false;
SArray* pLastCols = NULL;
void** pRes = taosMemoryCalloc(pr->numOfCols, POINTER_BYTES);
if (pRes == NULL) {
@ -293,23 +292,6 @@ int32_t tsdbRetrieveCacheRows(void* pReader, SSDataBlock* pResBlock, const int32
p->ts = INT64_MIN;
}
pLastCols = taosArrayInit(pr->numOfCols, sizeof(SLastCol));
if (pLastCols == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _end;
}
for (int32_t i = 0; i < pr->numOfCols; ++i) {
int32_t slotId = slotIds[i];
struct STColumn* pCol = &pr->pSchema->columns[slotId];
SLastCol p = {.ts = INT64_MIN, .colVal.type = pCol->type, .colVal.flag = CV_FLAG_NULL};
if (IS_VAR_DATA_TYPE(pCol->type)) {
p.colVal.value.pData = taosMemoryCalloc(pCol->bytes, sizeof(char));
}
taosArrayPush(pLastCols, &p);
}
taosThreadMutexLock(&pr->readerMutex);
code = tsdbTakeReadSnap2((STsdbReader*)pr, tsdbCacheQueryReseek, &pr->pReadSnap);
if (code != TSDB_CODE_SUCCESS) {
@ -321,6 +303,23 @@ int32_t tsdbRetrieveCacheRows(void* pReader, SSDataBlock* pResBlock, const int32
// retrieve the only one last row of all tables in the uid list.
if (HASTYPE(pr->type, CACHESCAN_RETRIEVE_TYPE_SINGLE)) {
SArray* pLastCols = taosArrayInit(pr->numOfCols, sizeof(SLastCol));
if (pLastCols == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _end;
}
for (int32_t i = 0; i < pr->numOfCols; ++i) {
int32_t slotId = slotIds[i];
struct STColumn* pCol = &pr->pSchema->columns[slotId];
SLastCol p = {.ts = INT64_MIN, .colVal.type = pCol->type, .colVal.flag = CV_FLAG_NULL};
if (IS_VAR_DATA_TYPE(pCol->type)) {
p.colVal.value.pData = taosMemoryCalloc(pCol->bytes, sizeof(char));
}
taosArrayPush(pLastCols, &p);
}
int64_t st = taosGetTimestampUs();
int64_t totalLastTs = INT64_MAX;
for (int32_t i = 0; i < pr->numOfTables; ++i) {
@ -398,6 +397,8 @@ int32_t tsdbRetrieveCacheRows(void* pReader, SSDataBlock* pResBlock, const int32
if (hasRes) {
saveOneRow(pLastCols, pResBlock, pr, slotIds, dstSlotIds, pRes, pr->idstr);
}
taosArrayDestroyEx(pLastCols, freeItem);
} else if (HASTYPE(pr->type, CACHESCAN_RETRIEVE_TYPE_ALL)) {
for (int32_t i = pr->tableIndex; i < pr->numOfTables; ++i) {
tb_uid_t uid = pTableList[i].uid;
@ -440,7 +441,6 @@ _end:
taosMemoryFree(pRes);
taosArrayDestroy(pRow);
taosArrayDestroyEx(pLastCols, freeItem);
return code;
}