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fix(query): fix scalar function input is constant return var type value contains illegal characters. 

TD-15116
This commit is contained in:
Ganlin Zhao 2022-04-25 17:16:47 +08:00
parent 970f2d788e
commit 8c36142a9c
2 changed files with 6 additions and 4 deletions
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2
source/libs/function/src/builtins.c
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@ -355,7 +355,7 @@ static int32_t translateToIso8601(SFunctionNode* pFunc, char* pErrBuf, int32_t l
return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName); return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
} }
pFunc->node.resType = (SDataType) { .bytes = 24, .type = TSDB_DATA_TYPE_BINARY}; pFunc->node.resType = (SDataType) { .bytes = 64, .type = TSDB_DATA_TYPE_BINARY};
return TSDB_CODE_SUCCESS; return TSDB_CODE_SUCCESS;
} }

6
source/libs/scalar/src/scalar.c
View File

@ -517,8 +517,10 @@ EDealRes sclRewriteFunction(SNode** pNode, SScalarCtx *ctx) {
res->node.resType = node->node.resType; res->node.resType = node->node.resType;
int32_t type = output.columnData->info.type; int32_t type = output.columnData->info.type;
if (IS_VAR_DATA_TYPE(type)) { if (IS_VAR_DATA_TYPE(type)) {
res->datum.p = output.columnData->pData; size_t tLen = varDataLen(output.columnData->pData);
output.columnData->pData = NULL; ASSERT(tLen <= res->node.resType.bytes);
res->datum.p = taosMemoryCalloc(res->node.resType.bytes + VARSTR_HEADER_SIZE + 1, 1);
memcpy(res->datum.p, output.columnData->pData, tLen);
} else { } else {
memcpy(nodesGetValueFromNode(res), output.columnData->pData, tDataTypes[type].bytes); memcpy(nodesGetValueFromNode(res), output.columnData->pData, tDataTypes[type].bytes);
} }