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Merge pull request #13390 from taosdata/fix/TD-16070 

fix(query): concat/concat_ws function null constant handling and param check
This commit is contained in:
Ganlin Zhao 2022-06-01 21:54:51 +08:00 committed by GitHub
parent 95c9dea9d6 61d2079870
commit 2c0f42c2be
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 16 additions and 4 deletions
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11
source/libs/function/src/builtins.c
View File

@ -817,11 +817,20 @@ static int32_t translateConcatImpl(SFunctionNode* pFunc, char* pErrBuf, int32_t
int32_t resultBytes = 0;
int32_t sepBytes = 0;
//concat_ws separator should be constant string
if (hasSep) {
SNode* pPara = nodesListGetNode(pFunc->pParameterList, 0);
if (nodeType(pPara) != QUERY_NODE_VALUE) {
return buildFuncErrMsg(pErrBuf, len, TSDB_CODE_FUNC_FUNTION_ERROR,
"The first parameter of CONCAT_WS function can only be constant string");
}
}
/* For concat/concat_ws function, if params have NCHAR type, promote the final result to NCHAR */
for (int32_t i = 0; i < numOfParams; ++i) {
SNode* pPara = nodesListGetNode(pFunc->pParameterList, i);
uint8_t paraType = ((SExprNode*)pPara)->resType.type;
if (!IS_VAR_DATA_TYPE(paraType)) {
if (!IS_VAR_DATA_TYPE(paraType) && TSDB_DATA_TYPE_NULL != paraType) {
return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
}
if (TSDB_DATA_TYPE_NCHAR == paraType) {

9
source/libs/scalar/src/sclfunc.c
View File

@ -444,7 +444,8 @@ int32_t concatFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOu
for (int32_t k = 0; k < numOfRows; ++k) {
bool hasNull = false;
for (int32_t i = 0; i < inputNum; ++i) {
if (colDataIsNull_s(pInputData[i], k)) {
if (colDataIsNull_s(pInputData[i], k) ||
GET_PARAM_TYPE(&pInput[i]) == TSDB_DATA_TYPE_NULL) {
colDataAppendNULL(pOutputData, k);
hasNull = true;
break;
@ -520,7 +521,8 @@ int32_t concatWsFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *p
char *output = outputBuf;
for (int32_t k = 0; k < numOfRows; ++k) {
if (colDataIsNull_s(pInputData[0], k)) {
if (colDataIsNull_s(pInputData[0], k) ||
GET_PARAM_TYPE(&pInput[0]) == TSDB_DATA_TYPE_NULL) {
colDataAppendNULL(pOutputData, k);
continue;
}
@ -528,7 +530,8 @@ int32_t concatWsFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *p
int16_t dataLen = 0;
bool hasNull = false;
for (int32_t i = 1; i < inputNum; ++i) {
if (colDataIsNull_s(pInputData[i], k)) {
if (colDataIsNull_s(pInputData[i], k) ||
GET_PARAM_TYPE(&pInput[i]) == TSDB_DATA_TYPE_NULL) {
hasNull = true;
break;
}