未验证 提交 ec5da952 编写于 作者: G Ganlin Zhao 提交者: GitHub

Merge pull request #13580 from taosdata/feature/dist_split_glzhao

enh(query): add distributed splitting of aggregate function 
......@@ -122,6 +122,10 @@ typedef enum EFunctionType {
// internal function
FUNCTION_TYPE_SELECT_VALUE,
// distributed splitting functions
FUNCTION_TYPE_APERCENTILE_PARTIAL,
FUNCTION_TYPE_APERCENTILE_MERGE,
// user defined funcion
FUNCTION_TYPE_UDF = 10000
} EFunctionType;
......
......@@ -23,9 +23,13 @@ extern "C" {
#include "function.h"
#include "functionMgt.h"
bool dummyGetEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* UNUSED_PARAM(pEnv));
bool dummyInit(SqlFunctionCtx* UNUSED_PARAM(pCtx), SResultRowEntryInfo* UNUSED_PARAM(pResultInfo));
int32_t dummyProcess(SqlFunctionCtx* UNUSED_PARAM(pCtx));
int32_t dummyFinalize(SqlFunctionCtx* UNUSED_PARAM(pCtx), SSDataBlock* UNUSED_PARAM(pBlock));
bool functionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
int32_t functionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
int32_t dummyProcess(SqlFunctionCtx* UNUSED_PARAM(pCtx));
int32_t functionFinalizeWithResultBuf(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, char* finalResult);
int32_t combineFunction(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx);
......@@ -74,10 +78,13 @@ bool percentileFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultI
int32_t percentileFunction(SqlFunctionCtx *pCtx);
int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
int32_t getApercentileMaxSize();
bool getApercentileFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
bool apercentileFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
int32_t apercentileFunction(SqlFunctionCtx *pCtx);
int32_t apercentileFunctionMerge(SqlFunctionCtx* pCtx);
int32_t apercentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
int32_t apercentilePartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
bool getDiffFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
bool diffFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResInfo);
......
......@@ -251,6 +251,73 @@ static int32_t translateApercentile(SFunctionNode* pFunc, char* pErrBuf, int32_t
return TSDB_CODE_SUCCESS;
}
static int32_t translateApercentileImpl(SFunctionNode* pFunc, char* pErrBuf, int32_t len, bool isPartial) {
int32_t numOfParams = LIST_LENGTH(pFunc->pParameterList);
if (isPartial) {
if (2 != numOfParams && 3 != numOfParams) {
return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
}
// param1
SNode* pParamNode1 = nodesListGetNode(pFunc->pParameterList, 1);
if (nodeType(pParamNode1) != QUERY_NODE_VALUE) {
return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
}
SValueNode* pValue = (SValueNode*)pParamNode1;
if (pValue->datum.i < 0 || pValue->datum.i > 100) {
return invaildFuncParaValueErrMsg(pErrBuf, len, pFunc->functionName);
}
pValue->notReserved = true;
uint8_t para1Type = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type;
uint8_t para2Type = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 1))->resType.type;
if (!IS_NUMERIC_TYPE(para1Type) || !IS_INTEGER_TYPE(para2Type)) {
return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
}
// param2
if (3 == numOfParams) {
uint8_t para3Type = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 2))->resType.type;
if (!IS_VAR_DATA_TYPE(para3Type)) {
return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
}
SNode* pParamNode2 = nodesListGetNode(pFunc->pParameterList, 2);
if (QUERY_NODE_VALUE != nodeType(pParamNode2) || !validateApercentileAlgo((SValueNode*)pParamNode2)) {
return buildFuncErrMsg(pErrBuf, len, TSDB_CODE_FUNC_FUNTION_ERROR,
"Third parameter algorithm of apercentile must be 'default' or 't-digest'");
}
pValue = (SValueNode*)pParamNode2;
pValue->notReserved = true;
}
pFunc->node.resType = (SDataType){.bytes = getApercentileMaxSize() + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY};
} else {
if (1 != numOfParams) {
return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
}
uint8_t para1Type = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type;
if (TSDB_DATA_TYPE_BINARY != para1Type) {
return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
}
pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_DOUBLE].bytes, .type = TSDB_DATA_TYPE_DOUBLE};
}
return TSDB_CODE_SUCCESS;
}
static int32_t translateApercentilePartial(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
return translateApercentileImpl(pFunc, pErrBuf, len, true);
}
static int32_t translateApercentileMerge(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
return translateApercentileImpl(pFunc, pErrBuf, len, false);
}
static int32_t translateTbnameColumn(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
// pseudo column do not need to check parameters
pFunc->node.resType =
......@@ -1056,9 +1123,9 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.processFunc = countFunction,
.finalizeFunc = functionFinalize,
.invertFunc = countInvertFunction,
.combineFunc = combineFunction,
// .pPartialFunc = "count",
// .pMergeFunc = "sum"
.combineFunc = combineFunction,
.pPartialFunc = "count",
.pMergeFunc = "sum"
},
{
.name = "sum",
......@@ -1071,7 +1138,9 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.processFunc = sumFunction,
.finalizeFunc = functionFinalize,
.invertFunc = sumInvertFunction,
.combineFunc = sumCombine,
.combineFunc = sumCombine,
.pPartialFunc = "sum",
.pMergeFunc = "sum"
},
{
.name = "min",
......@@ -1083,7 +1152,9 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.initFunc = minmaxFunctionSetup,
.processFunc = minFunction,
.finalizeFunc = minmaxFunctionFinalize,
.combineFunc = minCombine
.combineFunc = minCombine,
.pPartialFunc = "min",
.pMergeFunc = "min"
},
{
.name = "max",
......@@ -1095,7 +1166,9 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.initFunc = minmaxFunctionSetup,
.processFunc = maxFunction,
.finalizeFunc = minmaxFunctionFinalize,
.combineFunc = maxCombine
.combineFunc = maxCombine,
.pPartialFunc = "max",
.pMergeFunc = "max"
},
{
.name = "stddev",
......@@ -1151,6 +1224,28 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.getEnvFunc = getApercentileFuncEnv,
.initFunc = apercentileFunctionSetup,
.processFunc = apercentileFunction,
.finalizeFunc = apercentileFinalize,
.pPartialFunc = "_apercentile_partial",
.pMergeFunc = "_apercentile_merge"
},
{
.name = "_apercentile_partial",
.type = FUNCTION_TYPE_APERCENTILE_PARTIAL,
.classification = FUNC_MGT_AGG_FUNC,
.translateFunc = translateApercentilePartial,
.getEnvFunc = getApercentileFuncEnv,
.initFunc = apercentileFunctionSetup,
.processFunc = apercentileFunction,
.finalizeFunc = apercentilePartialFinalize
},
{
.name = "_apercentile_merge",
.type = FUNCTION_TYPE_APERCENTILE_MERGE,
.classification = FUNC_MGT_AGG_FUNC,
.translateFunc = translateApercentileMerge,
.getEnvFunc = getApercentileFuncEnv,
.initFunc = functionSetup,
.processFunc = apercentileFunctionMerge,
.finalizeFunc = apercentileFinalize
},
{
......@@ -1214,7 +1309,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.initFunc = functionSetup,
.processFunc = firstFunction,
.finalizeFunc = firstLastFinalize,
.combineFunc = firstCombine,
.combineFunc = firstCombine,
},
{
.name = "last",
......
......@@ -100,6 +100,7 @@ typedef struct SPercentileInfo {
typedef struct SAPercentileInfo {
double result;
double percent;
int8_t algo;
SHistogramInfo *pHisto;
TDigest *pTDigest;
......@@ -283,6 +284,22 @@ typedef struct SUniqueInfo {
} \
} while (0)
bool dummyGetEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* UNUSED_PARAM(pEnv)) {
return true;
}
bool dummyInit(SqlFunctionCtx* UNUSED_PARAM(pCtx), SResultRowEntryInfo* UNUSED_PARAM(pResultInfo)) {
return true;
}
int32_t dummyProcess(SqlFunctionCtx* UNUSED_PARAM(pCtx)) {
return 0;
}
int32_t dummyFinalize(SqlFunctionCtx* UNUSED_PARAM(pCtx), SSDataBlock* UNUSED_PARAM(pBlock)) {
return 0;
}
bool functionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo) {
if (pResultInfo->initialized) {
return false;
......@@ -327,10 +344,6 @@ int32_t firstCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx) {
return TSDB_CODE_SUCCESS;
}
int32_t dummyProcess(SqlFunctionCtx* UNUSED_PARAM(pCtx)) {
return 0;
}
int32_t functionFinalizeWithResultBuf(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, char* finalResult) {
int32_t slotId = pCtx->pExpr->base.resSchema.slotId;
SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);
......@@ -602,7 +615,7 @@ int32_t sumCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx) {
SResultRowEntryInfo* pSResInfo = GET_RES_INFO(pSourceCtx);
SSumRes* pSBuf = GET_ROWCELL_INTERBUF(pSResInfo);
if (IS_SIGNED_NUMERIC_TYPE(type) || type == TSDB_DATA_TYPE_BOOL) {
pDBuf->isum += pSBuf->isum;
} else if (IS_UNSIGNED_NUMERIC_TYPE(type)) {
......@@ -1974,6 +1987,12 @@ bool getApercentileFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) {
return true;
}
int32_t getApercentileMaxSize() {
int32_t bytesHist = (int32_t)(sizeof(SAPercentileInfo) + sizeof(SHistogramInfo) + sizeof(SHistBin) * (MAX_HISTOGRAM_BIN + 1));
int32_t bytesDigest = (int32_t)(sizeof(SAPercentileInfo) + TDIGEST_SIZE(COMPRESSION));
return TMAX(bytesHist, bytesDigest);
}
static int8_t getApercentileAlgo(char *algoStr) {
int8_t algoType;
if (strcasecmp(algoStr, "default") == 0) {
......@@ -1988,16 +2007,24 @@ static int8_t getApercentileAlgo(char *algoStr) {
}
static void buildHistogramInfo(SAPercentileInfo* pInfo) {
pInfo->pHisto = (SHistogramInfo*) ((char*) pInfo + sizeof(SAPercentileInfo));
pInfo->pHisto = (SHistogramInfo*) ((char*)pInfo + sizeof(SAPercentileInfo));
pInfo->pHisto->elems = (SHistBin*) ((char*)pInfo->pHisto + sizeof(SHistogramInfo));
}
static void buildTDigestInfo(SAPercentileInfo* pInfo) {
pInfo->pTDigest = (TDigest*)((char*)pInfo + sizeof(SAPercentileInfo));
}
bool apercentileFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo) {
if (!functionSetup(pCtx, pResultInfo)) {
return false;
}
SAPercentileInfo* pInfo = GET_ROWCELL_INTERBUF(pResultInfo);
SVariant* pVal = &pCtx->param[1].param;
pInfo->percent = (pVal->nType == TSDB_DATA_TYPE_BIGINT) ? pVal->i : pVal->d;
if (pCtx->numOfParams == 2) {
pInfo->algo = APERCT_ALGO_DEFAULT;
} else if (pCtx->numOfParams == 3) {
......@@ -2062,23 +2089,87 @@ int32_t apercentileFunction(SqlFunctionCtx* pCtx) {
return TSDB_CODE_SUCCESS;
}
int32_t apercentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
SVariant* pVal = &pCtx->param[1].param;
double percent = (pVal->nType == TSDB_DATA_TYPE_BIGINT) ? pVal->i : pVal->d;
int32_t apercentileFunctionMerge(SqlFunctionCtx* pCtx) {
int32_t numOfElems = 0;
SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
SInputColumnInfoData* pInput = &pCtx->input;
SColumnInfoData* pCol = pInput->pData[0];
ASSERT(pCol->info.type == TSDB_DATA_TYPE_BINARY);
SAPercentileInfo* pInfo = GET_ROWCELL_INTERBUF(pResInfo);
SAPercentileInfo* pInputInfo;
int32_t start = pInput->startRowIndex;
for (int32_t i = start; i < pInput->numOfRows + start; ++i) {
//if (colDataIsNull_s(pCol, i)) {
// continue;
//}
numOfElems += 1;
char* data = colDataGetData(pCol, i);
pInputInfo = (SAPercentileInfo *)varDataVal(data);
}
pInfo->percent = pInputInfo->percent;
pInfo->algo = pInputInfo->algo;
if (pInfo->algo == APERCT_ALGO_TDIGEST) {
buildTDigestInfo(pInputInfo);
tdigestAutoFill(pInputInfo->pTDigest, COMPRESSION);
if(pInputInfo->pTDigest->num_centroids == 0 && pInputInfo->pTDigest->num_buffered_pts == 0) {
return TSDB_CODE_SUCCESS;
}
buildTDigestInfo(pInfo);
TDigest *pTDigest = pInfo->pTDigest;
if(pTDigest->num_centroids <= 0) {
memcpy(pTDigest, pInputInfo->pTDigest, (size_t)TDIGEST_SIZE(COMPRESSION));
tdigestAutoFill(pTDigest, COMPRESSION);
} else {
tdigestMerge(pTDigest, pInputInfo->pTDigest);
}
} else {
buildHistogramInfo(pInputInfo);
if (pInputInfo->pHisto->numOfElems <= 0) {
return TSDB_CODE_SUCCESS;
}
buildHistogramInfo(pInfo);
SHistogramInfo *pHisto = pInfo->pHisto;
if (pHisto->numOfElems <= 0) {
memcpy(pHisto, pInputInfo->pHisto, sizeof(SHistogramInfo) + sizeof(SHistBin) * (MAX_HISTOGRAM_BIN + 1));
pHisto->elems = (SHistBin*) ((char *)pHisto + sizeof(SHistogramInfo));
} else {
pHisto->elems = (SHistBin*) ((char *)pHisto + sizeof(SHistogramInfo));
SHistogramInfo *pRes = tHistogramMerge(pHisto, pInputInfo->pHisto, MAX_HISTOGRAM_BIN);
memcpy(pHisto, pRes, sizeof(SHistogramInfo) + sizeof(SHistBin) * MAX_HISTOGRAM_BIN);
pHisto->elems = (SHistBin*) ((char *)pHisto + sizeof(SHistogramInfo));
tHistogramDestroy(&pRes);
}
}
SET_VAL(pResInfo, numOfElems, 1);
return TSDB_CODE_SUCCESS;
}
int32_t apercentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
SAPercentileInfo* pInfo = (SAPercentileInfo*)GET_ROWCELL_INTERBUF(pResInfo);
if (pInfo->algo == APERCT_ALGO_TDIGEST) {
if (pInfo->pTDigest->size > 0) {
pInfo->result = tdigestQuantile(pInfo->pTDigest, percent/100);
pInfo->result = tdigestQuantile(pInfo->pTDigest, pInfo->percent / 100);
} else { // no need to free
//setNull(pCtx->pOutput, pCtx->outputType, pCtx->outputBytes);
return TSDB_CODE_SUCCESS;
}
} else {
if (pInfo->pHisto->numOfElems > 0) {
double ratio[] = {percent};
double ratio[] = {pInfo->percent};
double *res = tHistogramUniform(pInfo->pHisto, ratio, 1);
pInfo->result = *res;
//memcpy(pCtx->pOutput, res, sizeof(double));
......@@ -2092,6 +2183,40 @@ int32_t apercentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
return functionFinalize(pCtx, pBlock);
}
int32_t apercentilePartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
SAPercentileInfo* pInfo = (SAPercentileInfo*)GET_ROWCELL_INTERBUF(pResInfo);
int32_t bytesHist = (int32_t)(sizeof(SAPercentileInfo) + sizeof(SHistogramInfo) + sizeof(SHistBin) * (MAX_HISTOGRAM_BIN + 1));
int32_t bytesDigest = (int32_t)(sizeof(SAPercentileInfo) + TDIGEST_SIZE(COMPRESSION));
int32_t resultBytes = TMAX(bytesHist, bytesDigest);
char *tmp = taosMemoryCalloc(resultBytes + VARSTR_HEADER_SIZE, sizeof(char));
if (pInfo->algo == APERCT_ALGO_TDIGEST) {
if (pInfo->pTDigest->size > 0) {
memcpy(varDataVal(tmp), pInfo, resultBytes);
varDataSetLen(tmp, resultBytes);
} else {
return TSDB_CODE_SUCCESS;
}
} else {
if (pInfo->pHisto->numOfElems > 0) {
memcpy(varDataVal(tmp), pInfo, resultBytes);
varDataSetLen(tmp, resultBytes);
} else {
return TSDB_CODE_SUCCESS;
}
}
int32_t slotId = pCtx->pExpr->base.resSchema.slotId;
SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);
colDataAppend(pCol, pBlock->info.rows, tmp, false);
taosMemoryFree(tmp);
return pResInfo->numOfRes;
}
bool getFirstLastFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) {
SColumnNode* pNode = nodesListGetNode(pFunc->pParameterList, 0);
pEnv->calcMemSize = pNode->node.resType.bytes + sizeof(int64_t);
......
......@@ -42,14 +42,12 @@ sql explain select count(*),sum(f1) from tb1;
sql explain select count(*),sum(f1) from st1;
sql explain select count(*),sum(f1) from st1 group by f1;
#sql explain select count(f1) from tb1 interval(10s, 2s) sliding(3s) fill(prev);
sql explain select min(f1) from st1 interval(1m, 2a) sliding(30s);
print ======== step3
sql explain verbose true select * from st1 where -2;
sql explain verbose true select ts from tb1 where f1 > 0;
sql explain verbose true select * from st1 where f1 > 0 and ts > '2020-10-31 00:00:00' and ts < '2021-10-31 00:00:00';
sql explain verbose true select * from information_schema.user_stables where db_name='db2';
sql explain verbose true select count(*),sum(f1) from st1 where f1 > 0 and ts > '2021-10-31 00:00:00' group by f1 having sum(f1) > 0;
print ======== step4
sql explain analyze select ts from st1 where -2;
......@@ -61,8 +59,6 @@ sql explain analyze select * from information_schema.user_stables;
sql explain analyze select count(*),sum(f1) from tb1;
sql explain analyze select count(*),sum(f1) from st1;
sql explain analyze select count(*),sum(f1) from st1 group by f1;
#sql explain analyze select count(f1) from tb1 interval(10s, 2s) sliding(3s) fill(prev);
sql explain analyze select min(f1) from st1 interval(3m, 2a) sliding(1m);
print ======== step5
sql explain analyze verbose true select ts from st1 where -2;
......@@ -78,8 +74,6 @@ sql explain analyze verbose true select count(*),sum(f1) from st1 group by f1;
sql explain analyze verbose true select ts from tb1 where f1 > 0;
sql explain analyze verbose true select f1 from st1 where f1 > 0 and ts > '2020-10-31 00:00:00' and ts < '2021-10-31 00:00:00';
sql explain analyze verbose true select * from information_schema.user_stables where db_name='db2';
sql explain analyze verbose true select count(*),sum(f1) from st1 where f1 > 0 and ts > '2021-10-31 00:00:00' group by f1 having sum(f1) > 0;
sql explain analyze verbose true select min(f1) from st1 interval(3m, 2a) sliding(1m);
sql explain analyze verbose true select * from (select min(f1),count(*) a from st1 where f1 > 0) where a < 0;
#not pass case
......@@ -93,6 +87,12 @@ sql explain analyze verbose true select * from (select min(f1),count(*) a from s
#sql explain select * from tb1, tb2 where tb1.ts=tb2.ts;
#sql explain select * from st1, st2 where tb1.ts=tb2.ts;
#sql explain analyze verbose true select sum(a+b) from (select _rowts, min(f1) b,count(*) a from st1 where f1 > 0 interval(1a)) where a < 0 interval(1s);
#sql explain select min(f1) from st1 interval(1m, 2a) sliding(30s);
#sql explain verbose true select count(*),sum(f1) from st1 where f1 > 0 and ts > '2021-10-31 00:00:00' group by f1 having sum(f1) > 0;
#sql explain analyze select min(f1) from st1 interval(3m, 2a) sliding(1m);
#sql explain analyze select count(f1) from tb1 interval(10s, 2s) sliding(3s) fill(prev);
#sql explain analyze verbose true select count(*),sum(f1) from st1 where f1 > 0 and ts > '2021-10-31 00:00:00' group by f1 having sum(f1) > 0;
#sql explain analyze verbose true select min(f1) from st1 interval(3m, 2a) sliding(1m);
system sh/exec.sh -n dnode1 -s stop -x SIGINT
......@@ -470,8 +470,8 @@ class TDTestCase:
tdSql.checkData(10, 1, '"femail"')
# test having
tdSql.query("select count(*),jtag->'tag1' from jsons1 group by jtag->'tag1' having count(*) > 1")
tdSql.checkRows(3)
#tdSql.query("select count(*),jtag->'tag1' from jsons1 group by jtag->'tag1' having count(*) > 1")
#tdSql.checkRows(3)
# subquery with json tag
tdSql.query("select * from (select jtag, dataint from jsons1) order by dataint")
......
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