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refactor(query): constant NULL value processing logic 

TD-14802
TD-14803
This commit is contained in:
Ganlin Zhao 2022-04-18 14:35:03 +08:00
parent f3b8bc8152
commit 315a6c0364
2 changed files with 20 additions and 12 deletions
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5
source/common/src/tdatablock.c
View File

@ -1100,6 +1100,11 @@ int32_t colInfoDataEnsureCapacity(SColumnInfoData* pColumn, uint32_t numOfRows)
pColumn->nullbitmap = tmp;
memset(pColumn->nullbitmap, 0, BitmapLen(numOfRows));
if (pColumn->info.type == TSDB_DATA_TYPE_NULL) {
return TSDB_CODE_SUCCESS;
}
assert(pColumn->info.bytes);
tmp = taosMemoryRealloc(pColumn->pData, numOfRows * pColumn->info.bytes);
if (tmp == NULL) {

5
source/libs/scalar/src/scalar.c
View File

@ -440,8 +440,10 @@ EDealRes sclRewriteFunction(SNode** pNode, SScalarCtx *ctx) {
return DEAL_RES_ERROR;
}
if (colDataIsNull_s(output.columnData, 0)) {
res->node.resType.type = TSDB_DATA_TYPE_NULL;
} else {
res->node.resType = node->node.resType;
int32_t type = output.columnData->info.type;
if (IS_VAR_DATA_TYPE(type)) {
res->datum.p = output.columnData->pData;
@ -449,6 +451,7 @@ EDealRes sclRewriteFunction(SNode** pNode, SScalarCtx *ctx) {
} else {
memcpy(nodesGetValueFromNode(res), output.columnData->pData, tDataTypes[type].bytes);
}
}
nodesDestroyNode(*pNode);
*pNode = (SNode*)res;