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[TD-14241]: concat function adoption

This commit is contained in:
Ganlin Zhao 2022-03-30 14:03:54 +08:00
parent 89abd4e349
commit 89aba48960
1 changed files with 30 additions and 9 deletions
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39
source/libs/scalar/src/sclfunc.c
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@ -310,6 +310,8 @@ int32_t doLengthFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *p
pOutput->numOfRows = pInput->numOfRows;
return TSDB_CODE_SUCCESS;
}
void allocateOutputBuf() {
}
int32_t concatFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
if (inputNum < 2 || inputNum > 8) { // concat accpet 2-8 input strings
@ -318,17 +320,35 @@ int32_t concatFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOu
SColumnInfoData **pInputData = taosMemoryCalloc(inputNum, sizeof(SColumnInfoData *));
SColumnInfoData *pOutputData = pOutput->columnData;
char **input = taosMemoryCalloc(inputNum, POINTER_BYTES);
char *output = NULL;
int32_t inputLen = 0;
int32_t numOfRows = pInput->numOfRows;
for (int32_t i = 0; i < inputNum; ++i) {
if (!IS_VAR_DATA_TYPE(GET_PARAM_TYPE(&pInput[i])) ||
GET_PARAM_TYPE(&pInput[i]) != GET_PARAM_TYPE(&pInput[0])) {
return TSDB_CODE_FAILED;
}
pInputData[i] = pInput[i].columnData;
inputLen += pInputData[i]->varmeta.length - numOfRows * VARSTR_HEADER_SIZE;
input[i] = pInputData[i]->pData;
}
//allocate output buf
if (pOutputData->pData == NULL) {
int32_t outputLen = inputLen + numOfRows * VARSTR_HEADER_SIZE;
pOutputData->pData = taosMemoryCalloc(outputLen, sizeof(char));
pOutputData->info.type = GET_PARAM_TYPE(pInput);
pOutputData->info.bytes = outputLen;
pOutputData->varmeta.length = outputLen;
pOutputData->varmeta.allocLen = outputLen;
}
output = pOutputData->pData;
bool hasNull = false;
for (int32_t k = 0; k < pInput->numOfRows; ++k) {
int32_t offset = 0;
for (int32_t k = 0; k < numOfRows; ++k) {
for (int32_t i = 0; i < inputNum; ++i) {
if (colDataIsNull_f(pInputData[i]->nullbitmap, k)) {
colDataSetNull_f(pOutputData->nullbitmap, k);
@ -341,20 +361,21 @@ int32_t concatFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOu
continue;
}
char *in = NULL;
char *out = pOutputData->pData + k * GET_PARAM_BYTES(pOutput);
int16_t dataLen = 0;
for (int32_t i = 0; i < inputNum; ++i) {
in = pInputData[i]->pData + k * GET_PARAM_BYTES(&pInput[i]);
memcpy(varDataVal(out) + dataLen, varDataVal(in), varDataLen(in));
dataLen += varDataLen(in);
memcpy(varDataVal(output) + dataLen, varDataVal(input[i]), varDataLen(input[i]));
dataLen += varDataLen(input[i]);
input[i] += varDataTLen(input[i]);
}
varDataSetLen(out, dataLen);
varDataSetLen(output, dataLen);
int32_t dataTLen = varDataTLen(output);
output += dataTLen;
pOutputData->varmeta.offset[k] = offset;
offset += dataTLen;
}
pOutput->numOfRows = pInput->numOfRows;
taosMemoryFree(input);
taosMemoryFree(pInputData);
return TSDB_CODE_SUCCESS;