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enh(query): add an new internal api to extract query result timestamp precision before the query response received from dnode.

This commit is contained in:
Haojun Liao 2022-04-15 13:42:03 +08:00
parent 367064591a
commit eaa6cd56a6
2 changed files with 19 additions and 4 deletions
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9
source/client/src/clientImpl.c
View File

@ -175,6 +175,7 @@ int32_t parseSql(SRequestObj* pRequest, bool topicQuery, SQuery** pQuery) {
if (TSDB_CODE_SUCCESS == code) {
if ((*pQuery)->haveResultSet) {
setResSchemaInfo(&pRequest->body.resInfo, (*pQuery)->pResSchema, (*pQuery)->numOfResCols);
setResPrecision(&pRequest->body.resInfo, (*pQuery)->precision);
}
TSWAP(pRequest->dbList, (*pQuery)->pDbList, SArray*);
@ -253,6 +254,14 @@ void setResSchemaInfo(SReqResultInfo* pResInfo, const SSchema* pSchema, int32_t
}
}
void setResPrecision(SReqResultInfo* pResInfo, int32_t precision) {
if (precision != TSDB_TIME_PRECISION_MILLI && precision != TSDB_TIME_PRECISION_MICRO && precision != TSDB_TIME_PRECISION_NANO) {
return;
}
pResInfo->precision = precision;
}
int32_t scheduleQuery(SRequestObj* pRequest, SQueryPlan* pDag, SArray* pNodeList) {
void* pTransporter = pRequest->pTscObj->pAppInfo->pTransporter;

14
source/libs/parser/src/parTranslater.c
View File

@ -2198,6 +2198,10 @@ static int32_t extractSelectResultSchema(const SSelectStmt* pSelect, int32_t* nu
return TSDB_CODE_SUCCESS;
}
static int8_t extractResultTsPrecision(const SSelectStmt* pSelect) {
return pSelect->precision;
}
static int32_t extractExplainResultSchema(int32_t* numOfCols, SSchema** pSchema) {
*numOfCols = 1;
*pSchema = taosMemoryCalloc((*numOfCols), sizeof(SSchema));
@ -2219,19 +2223,19 @@ static int32_t extractDescribeResultSchema(int32_t* numOfCols, SSchema** pSchema
(*pSchema)[0].type = TSDB_DATA_TYPE_BINARY;
(*pSchema)[0].bytes = DESCRIBE_RESULT_FIELD_LEN;
strcpy((*pSchema)[0].name, "Field");
strcpy((*pSchema)[0].name, "field");
(*pSchema)[1].type = TSDB_DATA_TYPE_BINARY;
(*pSchema)[1].bytes = DESCRIBE_RESULT_TYPE_LEN;
strcpy((*pSchema)[1].name, "Type");
strcpy((*pSchema)[1].name, "type");
(*pSchema)[2].type = TSDB_DATA_TYPE_INT;
(*pSchema)[2].bytes = tDataTypes[TSDB_DATA_TYPE_INT].bytes;
strcpy((*pSchema)[2].name, "Length");
strcpy((*pSchema)[2].name, "length");
(*pSchema)[3].type = TSDB_DATA_TYPE_BINARY;
(*pSchema)[3].bytes = DESCRIBE_RESULT_NOTE_LEN;
strcpy((*pSchema)[3].name, "Note");
strcpy((*pSchema)[3].name, "note");
return TSDB_CODE_SUCCESS;
}
@ -2912,6 +2916,8 @@ static int32_t setQuery(STranslateContext* pCxt, SQuery* pQuery) {
if (TSDB_CODE_SUCCESS != extractResultSchema(pQuery->pRoot, &pQuery->numOfResCols, &pQuery->pResSchema)) {
return TSDB_CODE_OUT_OF_MEMORY;
}
pQuery->precision = extractResultTsPrecision((SSelectStmt*) pQuery->pRoot);
}
if (NULL != pCxt->pDbs) {