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Merge pull request #3306 from taosdata/feature/td-1099 

natural interval
This commit is contained in:
Shengliang Guan 2020-09-01 09:46:31 +08:00 committed by GitHub
parent 9b2f895e54 e967332096
commit 7b364249e9
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 509 additions and 123 deletions
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2
src/client/inc/tscUtil.h
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@ -70,6 +70,8 @@ typedef struct SJoinSupporter {
SSubqueryState* pState;
SSqlObj* pObj; // parent SqlObj
int32_t subqueryIndex; // index of sub query
char intervalTimeUnit;
char slidingTimeUnit;
int64_t intervalTime; // interval time
int64_t slidingTime; // sliding time
SLimitVal limit; // limit info

7
src/client/inc/tsclient.h
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@ -229,8 +229,9 @@ typedef struct STableDataBlocks {
typedef struct SQueryInfo {
int16_t command; // the command may be different for each subclause, so keep it seperately.
uint32_t type; // query/insert type
char intervalTimeUnit;
char slidingTimeUnit;
uint32_t type; // query/insert type
STimeWindow window; // query time window
int64_t intervalTime; // aggregation time interval
int64_t slidingTime; // sliding window in mseconds
@ -366,6 +367,8 @@ typedef struct SSqlStream {
uint32_t streamId;
char listed;
bool isProject;
char intervalTimeUnit;
char slidingTimeUnit;
int16_t precision;
int64_t num; // number of computing count
@ -379,7 +382,7 @@ typedef struct SSqlStream {
int64_t ctime; // stream created time
int64_t stime; // stream next executed time
int64_t etime; // stream end query time, when time is larger then etime, the stream will be closed
int64_t interval;
int64_t intervalTime;
int64_t slidingTime;
void * pTimer;

4
src/client/src/tscProfile.c
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@ -259,11 +259,11 @@ int tscBuildQueryStreamDesc(void *pMsg, STscObj *pObj) {
pSdesc->num = htobe64(pStream->num);
pSdesc->useconds = htobe64(pStream->useconds);
pSdesc->stime = htobe64(pStream->stime - pStream->interval);
pSdesc->stime = htobe64(pStream->stime - pStream->intervalTime);
pSdesc->ctime = htobe64(pStream->ctime);
pSdesc->slidingTime = htobe64(pStream->slidingTime);
pSdesc->interval = htobe64(pStream->interval);
pSdesc->interval = htobe64(pStream->intervalTime);
pHeartbeat->numOfStreams++;
pSdesc++;

62
src/client/src/tscSQLParser.c
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@ -587,21 +587,20 @@ int32_t parseIntervalClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQ
// interval is not null
SStrToken* t = &pQuerySql->interval;
if (getTimestampInUsFromStr(t->z, t->n, &pQueryInfo->intervalTime) != TSDB_CODE_SUCCESS) {
if (parseDuration(t->z, t->n, &pQueryInfo->intervalTime, &pQueryInfo->intervalTimeUnit) != TSDB_CODE_SUCCESS) {
return TSDB_CODE_TSC_INVALID_SQL;
}
// if the unit of time window value is millisecond, change the value from microsecond
if (tinfo.precision == TSDB_TIME_PRECISION_MILLI) {
pQueryInfo->intervalTime = pQueryInfo->intervalTime / 1000;
}
if (pQueryInfo->intervalTimeUnit != 'n' && pQueryInfo->intervalTimeUnit != 'y') {
// if the unit of time window value is millisecond, change the value from microsecond
if (tinfo.precision == TSDB_TIME_PRECISION_MILLI) {
pQueryInfo->intervalTime = pQueryInfo->intervalTime / 1000;
}
/* parser has filter the illegal type, no need to check here */
pQueryInfo->slidingTimeUnit = pQuerySql->interval.z[pQuerySql->interval.n - 1];
// interval cannot be less than 10 milliseconds
if (pQueryInfo->intervalTime < tsMinIntervalTime) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
// interval cannot be less than 10 milliseconds
if (pQueryInfo->intervalTime < tsMinIntervalTime) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
}
}
// for top/bottom + interval query, we do not add additional timestamp column in the front
@ -666,6 +665,7 @@ int32_t parseSlidingClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQu
const char* msg0 = "sliding value too small";
const char* msg1 = "sliding value no larger than the interval value";
const char* msg2 = "sliding value can not less than 1% of interval value";
const char* msg3 = "does not support sliding when interval is natual month/year";
const static int32_t INTERVAL_SLIDING_FACTOR = 100;
@ -673,21 +673,27 @@ int32_t parseSlidingClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQu
STableComInfo tinfo = tscGetTableInfo(pTableMetaInfo->pTableMeta);
SStrToken* pSliding = &pQuerySql->sliding;
if (pSliding->n != 0) {
getTimestampInUsFromStr(pSliding->z, pSliding->n, &pQueryInfo->slidingTime);
if (tinfo.precision == TSDB_TIME_PRECISION_MILLI) {
pQueryInfo->slidingTime /= 1000;
}
if (pQueryInfo->slidingTime < tsMinSlidingTime) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg0);
}
if (pQueryInfo->slidingTime > pQueryInfo->intervalTime) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
}
} else {
if (pSliding->n == 0) {
pQueryInfo->slidingTimeUnit = pQueryInfo->intervalTimeUnit;
pQueryInfo->slidingTime = pQueryInfo->intervalTime;
return TSDB_CODE_SUCCESS;
}
if (pQueryInfo->intervalTimeUnit == 'n' || pQueryInfo->intervalTimeUnit == 'y') {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
}
getTimestampInUsFromStr(pSliding->z, pSliding->n, &pQueryInfo->slidingTime);
if (tinfo.precision == TSDB_TIME_PRECISION_MILLI) {
pQueryInfo->slidingTime /= 1000;
}
if (pQueryInfo->slidingTime < tsMinSlidingTime) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg0);
}
if (pQueryInfo->slidingTime > pQueryInfo->intervalTime) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
}
if ((pQueryInfo->intervalTime != 0) && (pQueryInfo->intervalTime/pQueryInfo->slidingTime > INTERVAL_SLIDING_FACTOR)) {
@ -4675,7 +4681,9 @@ int32_t validateSqlFunctionInStreamSql(SSqlCmd* pCmd, SQueryInfo* pQueryInfo) {
const char* msg0 = "sample interval can not be less than 10ms.";
const char* msg1 = "functions not allowed in select clause";
if (pQueryInfo->intervalTime != 0 && pQueryInfo->intervalTime < 10) {
if (pQueryInfo->intervalTime != 0 && pQueryInfo->intervalTime < 10 &&
pQueryInfo->intervalTimeUnit != 'n' &&
pQueryInfo->intervalTimeUnit != 'y') {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg0);
}
@ -6161,7 +6169,7 @@ int32_t doCheckForQuery(SSqlObj* pSql, SQuerySQL* pQuerySql, int32_t index) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg5);
}
if (pQueryInfo->intervalTime > 0) {
if (pQueryInfo->intervalTime > 0 && pQueryInfo->intervalTimeUnit != 'n' && pQueryInfo->intervalTimeUnit != 'y') {
int64_t timeRange = ABS(pQueryInfo->window.skey - pQueryInfo->window.ekey);
// number of result is not greater than 10,000,000
if ((timeRange == 0) || (timeRange / pQueryInfo->intervalTime) > MAX_INTERVAL_TIME_WINDOW) {

1
src/client/src/tscServer.c
View File

@ -673,6 +673,7 @@ int tscBuildQueryMsg(SSqlObj *pSql, SSqlInfo *pInfo) {
pQueryMsg->numOfCols = htons((int16_t)taosArrayGetSize(pQueryInfo->colList));
pQueryMsg->intervalTime = htobe64(pQueryInfo->intervalTime);
pQueryMsg->slidingTime = htobe64(pQueryInfo->slidingTime);
pQueryMsg->intervalTimeUnit = pQueryInfo->intervalTimeUnit;
pQueryMsg->slidingTimeUnit = pQueryInfo->slidingTimeUnit;
pQueryMsg->numOfGroupCols = htons(pQueryInfo->groupbyExpr.numOfGroupCols);
pQueryMsg->numOfTags = htonl(numOfTags);

100
src/client/src/tscStream.c
View File

@ -46,22 +46,23 @@ static bool isProjectStream(SQueryInfo* pQueryInfo) {
return true;
}
static int64_t tscGetRetryDelayTime(int64_t slidingTime, int16_t prec) {
static int64_t tscGetRetryDelayTime(SSqlStream* pStream, int64_t slidingTime, int16_t prec) {
float retryRangeFactor = 0.3f;
// change to ms
if (prec == TSDB_TIME_PRECISION_MICRO) {
slidingTime = slidingTime / 1000;
}
int64_t retryDelta = (int64_t)(tsStreamCompRetryDelay * retryRangeFactor);
retryDelta = ((rand() % retryDelta) + tsStreamCompRetryDelay) * 1000L;
if (slidingTime < retryDelta) {
return slidingTime;
} else {
return retryDelta;
if (pStream->intervalTimeUnit != 'n' && pStream->intervalTimeUnit != 'y') {
// change to ms
if (prec == TSDB_TIME_PRECISION_MICRO) {
slidingTime = slidingTime / 1000;
}
if (slidingTime < retryDelta) {
return slidingTime;
}
}
return retryDelta;
}
static void tscProcessStreamLaunchQuery(SSchedMsg *pMsg) {
@ -86,7 +87,7 @@ static void tscProcessStreamLaunchQuery(SSchedMsg *pMsg) {
// failed to get meter/metric meta, retry in 10sec.
if (code != TSDB_CODE_SUCCESS) {
int64_t retryDelayTime = tscGetRetryDelayTime(pStream->slidingTime, pStream->precision);
int64_t retryDelayTime = tscGetRetryDelayTime(pStream, pStream->slidingTime, pStream->precision);
tscDebug("%p stream:%p,get metermeta failed, retry in %" PRId64 "ms", pStream->pSql, pStream, retryDelayTime);
tscSetRetryTimer(pStream, pSql, retryDelayTime);
@ -131,13 +132,17 @@ static void tscProcessStreamTimer(void *handle, void *tmrId) {
}
if (etime > pStream->etime) {
etime = pStream->etime;
} else if (pStream->intervalTimeUnit != 'y' && pStream->intervalTimeUnit != 'n') {
etime = pStream->stime + (etime - pStream->stime) / pStream->intervalTime * pStream->intervalTime;
} else {
etime = pStream->stime + (etime - pStream->stime) / pStream->interval * pStream->interval;
etime = taosGetIntervalStartTimestamp(etime, pStream->slidingTime, pStream->intervalTime, pStream->slidingTimeUnit, pStream->precision);
}
pQueryInfo->window.ekey = etime;
if (pQueryInfo->window.skey >= pQueryInfo->window.ekey) {
int64_t timer = pStream->slidingTime;
if (pStream->precision == TSDB_TIME_PRECISION_MICRO) {
if (pStream->intervalTimeUnit == 'y' || pStream->intervalTimeUnit == 'n') {
timer = 86400 * 1000l;
} else if (pStream->precision == TSDB_TIME_PRECISION_MICRO) {
timer /= 1000l;
}
tscSetRetryTimer(pStream, pSql, timer);
@ -157,7 +162,7 @@ static void tscProcessStreamTimer(void *handle, void *tmrId) {
static void tscProcessStreamQueryCallback(void *param, TAOS_RES *tres, int numOfRows) {
SSqlStream *pStream = (SSqlStream *)param;
if (tres == NULL || numOfRows < 0) {
int64_t retryDelay = tscGetRetryDelayTime(pStream->slidingTime, pStream->precision);
int64_t retryDelay = tscGetRetryDelayTime(pStream, pStream->slidingTime, pStream->precision);
tscError("%p stream:%p, query data failed, code:0x%08x, retry in %" PRId64 "ms", pStream->pSql, pStream, numOfRows,
retryDelay);
@ -218,7 +223,7 @@ static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOf
SSqlObj * pSql = (SSqlObj *)res;
if (pSql == NULL || numOfRows < 0) {
int64_t retryDelayTime = tscGetRetryDelayTime(pStream->slidingTime, pStream->precision);
int64_t retryDelayTime = tscGetRetryDelayTime(pStream, pStream->slidingTime, pStream->precision);
tscError("%p stream:%p, retrieve data failed, code:0x%08x, retry in %" PRId64 "ms", pSql, pStream, numOfRows, retryDelayTime);
tscSetRetryTimer(pStream, pStream->pSql, retryDelayTime);
@ -241,7 +246,11 @@ static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOf
}
if (!pStream->isProject) {
pStream->stime += pStream->slidingTime;
if (pStream->intervalTimeUnit == 'y' || pStream->intervalTimeUnit == 'n') {
pStream->stime = taosAddNatualInterval(pStream->stime, pStream->slidingTime, pStream->slidingTimeUnit, pStream->precision);
} else {
pStream->stime += pStream->slidingTime;
}
}
// actually only one row is returned. this following is not necessary
taos_fetch_rows_a(res, tscProcessStreamRetrieveResult, pStream);
@ -301,7 +310,7 @@ static void tscSetRetryTimer(SSqlStream *pStream, SSqlObj *pSql, int64_t timer)
now + timer, timer, delay, pStream->stime, etime);
} else {
tscDebug("%p stream:%p, next start at %" PRId64 ", in %" PRId64 "ms. delay:%" PRId64 "ms qrange %" PRId64 "-%" PRId64, pStream->pSql, pStream,
pStream->stime, timer, delay, pStream->stime - pStream->interval, pStream->stime - 1);
pStream->stime, timer, delay, pStream->stime - pStream->intervalTime, pStream->stime - 1);
}
pSql->cmd.command = TSDB_SQL_SELECT;
@ -311,23 +320,26 @@ static void tscSetRetryTimer(SSqlStream *pStream, SSqlObj *pSql, int64_t timer)
}
static int64_t getLaunchTimeDelay(const SSqlStream* pStream) {
int64_t delayDelta = (int64_t)(pStream->slidingTime * tsStreamComputDelayRatio);
int64_t maxDelay =
(pStream->precision == TSDB_TIME_PRECISION_MICRO) ? tsMaxStreamComputDelay * 1000L : tsMaxStreamComputDelay;
if (delayDelta > maxDelay) {
delayDelta = maxDelay;
}
int64_t remainTimeWindow = pStream->slidingTime - delayDelta;
if (maxDelay > remainTimeWindow) {
maxDelay = (int64_t)(remainTimeWindow / 1.5f);
int64_t delayDelta = maxDelay;
if (pStream->intervalTimeUnit != 'n' && pStream->intervalTimeUnit != 'y') {
delayDelta = pStream->slidingTime * tsStreamComputDelayRatio;
if (delayDelta > maxDelay) {
delayDelta = maxDelay;
}
int64_t remainTimeWindow = pStream->slidingTime - delayDelta;
if (maxDelay > remainTimeWindow) {
maxDelay = (int64_t)(remainTimeWindow / 1.5f);
}
}
int64_t currentDelay = (rand() % maxDelay); // a random number
currentDelay += delayDelta;
assert(currentDelay < pStream->slidingTime);
if (pStream->intervalTimeUnit != 'n' && pStream->intervalTimeUnit != 'y') {
assert(currentDelay < pStream->slidingTime);
}
return currentDelay;
}
@ -354,7 +366,8 @@ static void tscSetNextLaunchTimer(SSqlStream *pStream, SSqlObj *pSql) {
return;
}
} else {
if ((pStream->stime - pStream->interval) >= pStream->etime) {
int64_t stime = taosGetIntervalStartTimestamp(pStream->stime - 1, pStream->intervalTime, pStream->intervalTime, pStream->intervalTimeUnit, pStream->precision);
if (stime >= pStream->etime) {
tscDebug("%p stream:%p, stime:%" PRId64 " is larger than end time: %" PRId64 ", stop the stream", pStream->pSql, pStream,
pStream->stime, pStream->etime);
// TODO : How to terminate stream here
@ -387,24 +400,24 @@ static void tscSetSlidingWindowInfo(SSqlObj *pSql, SSqlStream *pStream) {
SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, 0);
if (pQueryInfo->intervalTime < minIntervalTime) {
if (pQueryInfo->intervalTimeUnit != 'n' && pQueryInfo->intervalTimeUnit != 'y' && pQueryInfo->intervalTime < minIntervalTime) {
tscWarn("%p stream:%p, original sample interval:%ld too small, reset to:%" PRId64, pSql, pStream,
pQueryInfo->intervalTime, minIntervalTime);
pQueryInfo->intervalTime = minIntervalTime;
}
pStream->interval = pQueryInfo->intervalTime; // it shall be derived from sql string
pStream->intervalTimeUnit = pQueryInfo->intervalTimeUnit;
pStream->intervalTime = pQueryInfo->intervalTime; // it shall be derived from sql string
if (pQueryInfo->slidingTime == 0) {
if (pQueryInfo->slidingTime <= 0) {
pQueryInfo->slidingTime = pQueryInfo->intervalTime;
pQueryInfo->slidingTimeUnit = pQueryInfo->intervalTimeUnit;
}
int64_t minSlidingTime =
(pStream->precision == TSDB_TIME_PRECISION_MICRO) ? tsMinSlidingTime * 1000L : tsMinSlidingTime;
if (pQueryInfo->slidingTime == -1) {
pQueryInfo->slidingTime = pQueryInfo->intervalTime;
} else if (pQueryInfo->slidingTime < minSlidingTime) {
if (pQueryInfo->intervalTimeUnit != 'n' && pQueryInfo->intervalTimeUnit != 'y' && pQueryInfo->slidingTime < minSlidingTime) {
tscWarn("%p stream:%p, original sliding value:%" PRId64 " too small, reset to:%" PRId64, pSql, pStream,
pQueryInfo->slidingTime, minSlidingTime);
@ -418,6 +431,7 @@ static void tscSetSlidingWindowInfo(SSqlObj *pSql, SSqlStream *pStream) {
pQueryInfo->slidingTime = pQueryInfo->intervalTime;
}
pStream->slidingTimeUnit = pQueryInfo->slidingTimeUnit;
pStream->slidingTime = pQueryInfo->slidingTime;
if (pStream->isProject) {
@ -431,7 +445,7 @@ static int64_t tscGetStreamStartTimestamp(SSqlObj *pSql, SSqlStream *pStream, in
if (pStream->isProject) {
// no data in table, flush all data till now to destination meter, 10sec delay
pStream->interval = tsProjectExecInterval;
pStream->intervalTime = tsProjectExecInterval;
pStream->slidingTime = tsProjectExecInterval;
if (stime != 0) { // first projection start from the latest event timestamp
@ -442,11 +456,15 @@ static int64_t tscGetStreamStartTimestamp(SSqlObj *pSql, SSqlStream *pStream, in
}
} else { // timewindow based aggregation stream
if (stime == 0) { // no data in meter till now
stime = ((int64_t)taosGetTimestamp(pStream->precision) / pStream->interval) * pStream->interval;
stime -= pStream->interval;
tscWarn("%p stream:%p, last timestamp:0, reset to:%" PRId64, pSql, pStream, stime);
stime = pQueryInfo->window.skey;
if (stime == INT64_MIN) {
stime = (int64_t)taosGetTimestamp(pStream->precision);
stime = taosGetIntervalStartTimestamp(stime, pStream->intervalTime, pStream->intervalTime, pStream->intervalTimeUnit, pStream->precision);
stime = taosGetIntervalStartTimestamp(stime - 1, pStream->intervalTime, pStream->intervalTime, pStream->intervalTimeUnit, pStream->precision);
tscWarn("%p stream:%p, last timestamp:0, reset to:%" PRId64, pSql, pStream, stime);
}
} else {
int64_t newStime = (stime / pStream->interval) * pStream->interval;
int64_t newStime = taosGetIntervalStartTimestamp(stime, pStream->intervalTime, pStream->intervalTime, pStream->intervalTimeUnit, pStream->precision);
if (newStime != stime) {
tscWarn("%p stream:%p, last timestamp:%" PRId64 ", reset to:%" PRId64, pSql, pStream, stime, newStime);
stime = newStime;
@ -516,7 +534,7 @@ static void tscCreateStream(void *param, TAOS_RES *res, int code) {
taosTmrReset(tscProcessStreamTimer, (int32_t)starttime, pStream, tscTmr, &pStream->pTimer);
tscDebug("%p stream:%p is opened, query on:%s, interval:%" PRId64 ", sliding:%" PRId64 ", first launched in:%" PRId64 ", sql:%s", pSql,
pStream, pTableMetaInfo->name, pStream->interval, pStream->slidingTime, starttime, pSql->sqlstr);
pStream, pTableMetaInfo->name, pStream->intervalTime, pStream->slidingTime, starttime, pSql->sqlstr);
}
TAOS_STREAM *taos_open_stream(TAOS *taos, const char *sqlstr, void (*fp)(void *param, TAOS_RES *, TAOS_ROW row),

4
src/client/src/tscSubquery.c
View File

@ -178,6 +178,8 @@ SJoinSupporter* tscCreateJoinSupporter(SSqlObj* pSql, SSubqueryState* pState, in
pSupporter->subqueryIndex = index;
SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, pSql->cmd.clauseIndex);
pSupporter->intervalTimeUnit = pQueryInfo->intervalTimeUnit;
pSupporter->slidingTime = pQueryInfo->slidingTimeUnit;
pSupporter->intervalTime = pQueryInfo->intervalTime;
pSupporter->slidingTime = pQueryInfo->slidingTime;
pSupporter->limit = pQueryInfo->limit;
@ -309,6 +311,8 @@ static int32_t tscLaunchRealSubqueries(SSqlObj* pSql) {
// set the second stage sub query for join process
TSDB_QUERY_SET_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_JOIN_SEC_STAGE);
pQueryInfo->intervalTimeUnit = pSupporter->intervalTimeUnit;
pQueryInfo->slidingTimeUnit = pSupporter->slidingTimeUnit;
pQueryInfo->intervalTime = pSupporter->intervalTime;
pQueryInfo->slidingTime = pSupporter->slidingTime;
pQueryInfo->groupbyExpr = pSupporter->groupbyExpr;

1
src/client/src/tscUtil.c
View File

@ -1830,6 +1830,7 @@ SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, void (*fp)(), void
SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(pCmd, pCmd->clauseIndex);
pNewQueryInfo->command = pQueryInfo->command;
pNewQueryInfo->intervalTimeUnit = pQueryInfo->intervalTimeUnit;
pNewQueryInfo->slidingTimeUnit = pQueryInfo->slidingTimeUnit;
pNewQueryInfo->intervalTime = pQueryInfo->intervalTime;
pNewQueryInfo->slidingTime = pQueryInfo->slidingTime;

2
src/common/inc/tname.h
View File

@ -35,6 +35,8 @@ bool tscValidateTableNameLength(size_t len);
SColumnFilterInfo* tscFilterInfoClone(const SColumnFilterInfo* src, int32_t numOfFilters);
int64_t taosAddNatualInterval(int64_t key, int64_t intervalTime, char timeUnit, int16_t precision);
int32_t taosCountNatualInterval(int64_t skey, int64_t ekey, int64_t intervalTime, char timeUnit, int16_t precision);
int64_t taosGetIntervalStartTimestamp(int64_t startTime, int64_t slidingTime, int64_t intervalTime, char timeUnit, int16_t precision);
#endif // TDENGINE_NAME_H

125
src/common/src/tname.c
View File

@ -100,33 +100,120 @@ SColumnFilterInfo* tscFilterInfoClone(const SColumnFilterInfo* src, int32_t numO
return pFilter;
}
int64_t taosAddNatualInterval(int64_t key, int64_t intervalTime, char timeUnit, int16_t precision) {
key /= 1000;
if (precision == TSDB_TIME_PRECISION_MICRO) {
key /= 1000;
}
struct tm tm;
time_t t = (time_t)key;
localtime_r(&t, &tm);
if (timeUnit == 'y') {
intervalTime *= 12;
}
int mon = tm.tm_year * 12 + tm.tm_mon + intervalTime;
tm.tm_year = mon / 12;
tm.tm_mon = mon % 12;
key = mktime(&tm) * 1000L;
if (precision == TSDB_TIME_PRECISION_MICRO) {
key *= 1000L;
}
return key;
}
int32_t taosCountNatualInterval(int64_t skey, int64_t ekey, int64_t intervalTime, char timeUnit, int16_t precision) {
skey /= 1000;
ekey /= 1000;
if (precision == TSDB_TIME_PRECISION_MICRO) {
skey /= 1000;
ekey /= 1000;
}
if (ekey < skey) {
int64_t tmp = ekey;
ekey = skey;
skey = tmp;
}
struct tm tm;
time_t t = (time_t)skey;
localtime_r(&t, &tm);
int smon = tm.tm_year * 12 + tm.tm_mon;
t = (time_t)ekey;
localtime_r(&t, &tm);
int emon = tm.tm_year * 12 + tm.tm_mon;
if (timeUnit == 'y') {
intervalTime *= 12;
}
return (emon - smon) / (int32_t)intervalTime;
}
int64_t taosGetIntervalStartTimestamp(int64_t startTime, int64_t slidingTime, int64_t intervalTime, char timeUnit, int16_t precision) {
if (slidingTime == 0) {
return startTime;
}
int64_t start = startTime;
if (timeUnit == 'n' || timeUnit == 'y') {
start /= 1000;
if (precision == TSDB_TIME_PRECISION_MICRO) {
start /= 1000;
}
struct tm tm;
time_t t = (time_t)start;
localtime_r(&t, &tm);
tm.tm_sec = 0;
tm.tm_min = 0;
tm.tm_hour = 0;
tm.tm_mday = 1;
int64_t start = ((startTime - intervalTime) / slidingTime + 1) * slidingTime;
if (!(timeUnit == 'u' || timeUnit == 'a' || timeUnit == 'm' || timeUnit == 's' || timeUnit == 'h')) {
/*
* here we revised the start time of day according to the local time zone,
* but in case of DST, the start time of one day need to be dynamically decided.
*/
// todo refactor to extract function that is available for Linux/Windows/Mac platform
#if defined(WINDOWS) && _MSC_VER >= 1900
// see https://docs.microsoft.com/en-us/cpp/c-runtime-library/daylight-dstbias-timezone-and-tzname?view=vs-2019
int64_t timezone = _timezone;
int32_t daylight = _daylight;
char** tzname = _tzname;
#endif
if (timeUnit == 'y') {
tm.tm_mon = 0;
tm.tm_year = tm.tm_year / slidingTime * slidingTime;
} else {
int mon = tm.tm_year * 12 + tm.tm_mon;
mon = mon / slidingTime * slidingTime;
tm.tm_year = mon / 12;
tm.tm_mon = mon % 12;
}
int64_t t = (precision == TSDB_TIME_PRECISION_MILLI) ? MILLISECOND_PER_SECOND : MILLISECOND_PER_SECOND * 1000L;
start += timezone * t;
start = mktime(&tm) * 1000L;
if (precision == TSDB_TIME_PRECISION_MICRO) {
start *= 1000L;
}
} else {
start = ((start - intervalTime) / slidingTime + 1) * slidingTime;
if (timeUnit == 'd' || timeUnit == 'w') {
/*
* here we revised the start time of day according to the local time zone,
* but in case of DST, the start time of one day need to be dynamically decided.
*/
// todo refactor to extract function that is available for Linux/Windows/Mac platform
#if defined(WINDOWS) && _MSC_VER >= 1900
// see https://docs.microsoft.com/en-us/cpp/c-runtime-library/daylight-dstbias-timezone-and-tzname?view=vs-2019
int64_t timezone = _timezone;
int32_t daylight = _daylight;
char** tzname = _tzname;
#endif
int64_t t = (precision == TSDB_TIME_PRECISION_MILLI) ? MILLISECOND_PER_SECOND : MILLISECOND_PER_SECOND * 1000L;
start += timezone * t;
}
int64_t end = start + intervalTime - 1;
if (end < startTime) {
start += slidingTime;
}
}
int64_t end = start + intervalTime - 1;
if (end < startTime) {
start += slidingTime;
}
return start;
}

1
src/inc/taosmsg.h
View File

@ -456,6 +456,7 @@ typedef struct {
int64_t intervalTime; // time interval for aggregation, in million second
int64_t intervalOffset; // start offset for interval query
int64_t slidingTime; // value for sliding window
char intervalTimeUnit;
char slidingTimeUnit; // time interval type, for revisement of interval(1d)
uint16_t tagCondLen; // tag length in current query
int16_t numOfGroupCols; // num of group by columns

1
src/os/inc/osTime.h
View File

@ -64,6 +64,7 @@ static FORCE_INLINE int64_t taosGetTimestamp(int32_t precision) {
}
int32_t getTimestampInUsFromStr(char* token, int32_t tokenlen, int64_t* ts);
int32_t parseDuration(const char* token, int32_t tokenLen, int64_t* duration, char* unit);
int32_t taosParseTime(char* timestr, int64_t* time, int32_t len, int32_t timePrec, int8_t dayligth);
void deltaToUtcInitOnce();

19
src/os/src/detail/osTime.c
View File

@ -319,6 +319,8 @@ int32_t parseLocaltimeWithDst(char* timestr, int64_t* time, int32_t timePrec) {
*time = factor * seconds + fraction;
return 0;
}
static int32_t getTimestampInUsFromStrImpl(int64_t val, char unit, int64_t* result) {
*result = val;
@ -384,6 +386,23 @@ int32_t getTimestampInUsFromStr(char* token, int32_t tokenlen, int64_t* ts) {
return getTimestampInUsFromStrImpl(timestamp, token[tokenlen - 1], ts);
}
int32_t parseDuration(const char* token, int32_t tokenLen, int64_t* duration, char* unit) {
errno = 0;
/* get the basic numeric value */
*duration = strtoll(token, NULL, 10);
if (errno != 0) {
return -1;
}
*unit = token[tokenLen - 1];
if (*unit == 'n' || *unit == 'y') {
return 0;
}
return getTimestampInUsFromStrImpl(*duration, *unit, duration);
}
// internal function, when program is paused in debugger,
// one can call this function from debugger to print a
// timestamp as human readable string, for example (gdb):

3
src/query/inc/qExecutor.h
View File

@ -132,11 +132,12 @@ typedef struct SQueryCostInfo {
typedef struct SQuery {
int16_t numOfCols;
int16_t numOfTags;
char intervalTimeUnit;
char slidingTimeUnit; // interval data type, used for daytime revise
SOrderVal order;
STimeWindow window;
int64_t intervalTime;
int64_t slidingTime; // sliding time for sliding window query
char slidingTimeUnit; // interval data type, used for daytime revise
int16_t precision;
int16_t numOfOutput;
int16_t fillType;

104
src/query/src/qExecutor.c
View File

@ -137,13 +137,44 @@ static void finalizeQueryResult(SQueryRuntimeEnv *pRuntimeEnv);
#define QUERY_IS_INTERVAL_QUERY(_q) ((_q)->intervalTime > 0)
// previous time window may not be of the same size of pQuery->intervalTime
#define GET_NEXT_TIMEWINDOW(_q, tw) \
do { \
int32_t factor = GET_FORWARD_DIRECTION_FACTOR((_q)->order.order); \
(tw)->skey += ((_q)->slidingTime * factor); \
(tw)->ekey = (tw)->skey + ((_q)->intervalTime - 1); \
} while (0)
static void getNextTimeWindow(SQuery* pQuery, STimeWindow* tw) {
int32_t factor = GET_FORWARD_DIRECTION_FACTOR(pQuery->order.order);
if (pQuery->intervalTimeUnit != 'n' && pQuery->intervalTimeUnit != 'y') {
tw->skey += pQuery->slidingTime * factor;
tw->ekey = tw->skey + pQuery->intervalTime - 1;
return;
}
int64_t key = tw->skey / 1000, interval = pQuery->intervalTime;
if (pQuery->precision == TSDB_TIME_PRECISION_MICRO) {
key /= 1000;
}
if (pQuery->intervalTimeUnit == 'y') {
interval *= 12;
}
struct tm tm;
time_t t = (time_t)key;
localtime_r(&t, &tm);
int mon = tm.tm_year * 12 + tm.tm_mon + interval * factor;
tm.tm_year = mon / 12;
tm.tm_mon = mon % 12;
tw->skey = mktime(&tm) * 1000L;
mon += interval;
tm.tm_year = mon / 12;
tm.tm_mon = mon % 12;
tw->ekey = mktime(&tm) * 1000L;
if (pQuery->precision == TSDB_TIME_PRECISION_MICRO) {
tw->skey *= 1000L;
tw->ekey *= 1000L;
}
tw->ekey -= 1;
}
#define GET_NEXT_TIMEWINDOW(_q, tw) getNextTimeWindow((_q), (tw))
#define SET_STABLE_QUERY_OVER(_q) ((_q)->tableIndex = (int32_t)((_q)->tableqinfoGroupInfo.numOfTables))
#define IS_STASBLE_QUERY_OVER(_q) ((_q)->tableIndex >= (int32_t)((_q)->tableqinfoGroupInfo.numOfTables))
@ -467,9 +498,13 @@ static SWindowResult *doSetTimeWindowFromKey(SQueryRuntimeEnv *pRuntimeEnv, SWin
static STimeWindow getActiveTimeWindow(SWindowResInfo *pWindowResInfo, int64_t ts, SQuery *pQuery) {
STimeWindow w = {0};
if (pWindowResInfo->curIndex == -1) { // the first window, from the previous stored value
if (pWindowResInfo->curIndex == -1) { // the first window, from the previous stored value
w.skey = pWindowResInfo->prevSKey;
w.ekey = w.skey + pQuery->intervalTime - 1;
if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
w.ekey = taosAddNatualInterval(w.skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
} else {
w.ekey = w.skey + pQuery->intervalTime - 1;
}
} else {
int32_t slot = curTimeWindowIndex(pWindowResInfo);
SWindowResult* pWindowRes = getWindowResult(pWindowResInfo, slot);
@ -477,19 +512,24 @@ static STimeWindow getActiveTimeWindow(SWindowResInfo *pWindowResInfo, int64_t t
}
if (w.skey > ts || w.ekey < ts) {
int64_t st = w.skey;
if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
w.skey = taosGetIntervalStartTimestamp(ts, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
w.ekey = taosAddNatualInterval(w.skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
} else {
int64_t st = w.skey;
if (st > ts) {
st -= ((st - ts + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
if (st > ts) {
st -= ((st - ts + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
}
int64_t et = st + pQuery->intervalTime - 1;
if (et < ts) {
st += ((ts - et + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
}
w.skey = st;
w.ekey = w.skey + pQuery->intervalTime - 1;
}
int64_t et = st + pQuery->intervalTime - 1;
if (et < ts) {
st += ((ts - et + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
}
w.skey = st;
w.ekey = w.skey + pQuery->intervalTime - 1;
}
/*
@ -814,14 +854,22 @@ static int32_t getNextQualifiedWindow(SQueryRuntimeEnv *pRuntimeEnv, STimeWindow
*/
if (QUERY_IS_ASC_QUERY(pQuery) && primaryKeys[startPos] > pNext->ekey) {
TSKEY next = primaryKeys[startPos];
pNext->ekey += ((next - pNext->ekey + pQuery->slidingTime - 1)/pQuery->slidingTime) * pQuery->slidingTime;
pNext->skey = pNext->ekey - pQuery->intervalTime + 1;
if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
pNext->skey = taosGetIntervalStartTimestamp(next, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
pNext->ekey = taosAddNatualInterval(pNext->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
} else {
pNext->ekey += ((next - pNext->ekey + pQuery->slidingTime - 1)/pQuery->slidingTime) * pQuery->slidingTime;
pNext->skey = pNext->ekey - pQuery->intervalTime + 1;
}
} else if ((!QUERY_IS_ASC_QUERY(pQuery)) && primaryKeys[startPos] < pNext->skey) {
TSKEY next = primaryKeys[startPos];
pNext->skey -= ((pNext->skey - next + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
pNext->ekey = pNext->skey + pQuery->intervalTime - 1;
if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
pNext->skey = taosGetIntervalStartTimestamp(next, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
pNext->ekey = taosAddNatualInterval(pNext->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
} else {
pNext->skey -= ((pNext->skey - next + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
pNext->ekey = pNext->skey + pQuery->intervalTime - 1;
}
}
return startPos;
@ -1804,7 +1852,8 @@ void getAlignQueryTimeWindow(SQuery *pQuery, int64_t key, int64_t keyFirst, int6
if (keyFirst > (INT64_MAX - pQuery->intervalTime)) {
assert(keyLast - keyFirst < pQuery->intervalTime);
win->ekey = INT64_MAX;
return;
} else if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
win->ekey = taosAddNatualInterval(win->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
} else {
win->ekey = win->skey + pQuery->intervalTime - 1;
}
@ -6016,6 +6065,7 @@ static SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SArray* pTableIdList,
pQuery->pGroupbyExpr = pGroupbyExpr;
pQuery->intervalTime = pQueryMsg->intervalTime;
pQuery->slidingTime = pQueryMsg->slidingTime;
pQuery->intervalTimeUnit = pQueryMsg->intervalTimeUnit;
pQuery->slidingTimeUnit = pQueryMsg->slidingTimeUnit;
pQuery->fillType = pQueryMsg->fillType;
pQuery->numOfTags = pQueryMsg->numOfTags;

26
src/query/src/qFill.c
View File

@ -179,14 +179,22 @@ int64_t getFilledNumOfRes(SFillInfo* pFillInfo, TSKEY ekey, int32_t maxNumOfRows
if (numOfRows > 0) { // still fill gap within current data block, not generating data after the result set.
TSKEY lastKey = tsList[pFillInfo->numOfRows - 1];
numOfRes = (int64_t)(ABS(lastKey - pFillInfo->start) / pFillInfo->slidingTime) + 1;
if (pFillInfo->slidingUnit != 'y' && pFillInfo->slidingUnit != 'n') {
numOfRes = (int64_t)(ABS(lastKey - pFillInfo->start) / pFillInfo->slidingTime) + 1;
} else {
numOfRes = taosCountNatualInterval(lastKey, pFillInfo->start, pFillInfo->slidingTime, pFillInfo->slidingUnit, pFillInfo->precision) + 1;
}
assert(numOfRes >= numOfRows);
} else { // reach the end of data
if ((ekey1 < pFillInfo->start && FILL_IS_ASC_FILL(pFillInfo)) ||
(ekey1 > pFillInfo->start && !FILL_IS_ASC_FILL(pFillInfo))) {
return 0;
} else { // the numOfRes rows are all filled with specified policy
}
// the numOfRes rows are all filled with specified policy
if (pFillInfo->slidingUnit != 'y' && pFillInfo->slidingUnit != 'n') {
numOfRes = (ABS(ekey1 - pFillInfo->start) / pFillInfo->slidingTime) + 1;
} else {
numOfRes = taosCountNatualInterval(ekey1, pFillInfo->start, pFillInfo->slidingTime, pFillInfo->slidingUnit, pFillInfo->precision) + 1;
}
}
@ -366,7 +374,12 @@ static void doFillResultImpl(SFillInfo* pFillInfo, tFilePage** data, int32_t* nu
setTagsValue(pFillInfo, data, *num);
}
pFillInfo->start += (pFillInfo->slidingTime * step);
// TODO natual sliding time
if (pFillInfo->slidingUnit != 'n' && pFillInfo->slidingUnit != 'y') {
pFillInfo->start += (pFillInfo->slidingTime * step);
} else {
pFillInfo->start = taosAddNatualInterval(pFillInfo->start, pFillInfo->slidingTime*step, pFillInfo->slidingUnit, pFillInfo->precision);
}
pFillInfo->numOfCurrent++;
(*num) += 1;
@ -473,7 +486,12 @@ int32_t generateDataBlockImpl(SFillInfo* pFillInfo, tFilePage** data, int32_t nu
// set the tag value for final result
setTagsValue(pFillInfo, data, num);
pFillInfo->start += (pFillInfo->slidingTime * step);
// TODO natual sliding time
if (pFillInfo->slidingUnit != 'n' && pFillInfo->slidingUnit != 'y') {
pFillInfo->start += (pFillInfo->slidingTime * step);
} else {
pFillInfo->start = taosAddNatualInterval(pFillInfo->start, pFillInfo->slidingTime*step, pFillInfo->slidingUnit, pFillInfo->precision);
}
pFillInfo->rowIdx += 1;
pFillInfo->numOfCurrent +=1;

170
tests/pytest/query/natualInterval.py Normal file
View File

@ -0,0 +1,170 @@
###################################################################
# Copyright (c) 2020 by TAOS Technologies, Inc.
# All rights reserved.
#
# This file is proprietary and confidential to TAOS Technologies.
# No part of this file may be reproduced, stored, transmitted,
# disclosed or used in any form or by any means other than as
# expressly provided by the written permission from Jianhui Tao
#
###################################################################
# -*- coding: utf-8 -*-
import sys
import taos
from util.log import *
from util.cases import *
from util.sql import *
class TDTestCase:
def init(self, conn, logSql):
tdLog.debug("start to execute %s" % __file__)
tdSql.init(conn.cursor())
def singleTable(self):
tdSql.execute("create table car(ts timestamp, s int)")
tdSql.execute("insert into car values('2019-01-01 00:00:00', 1)")
tdSql.execute("insert into car values('2019-05-13 12:00:00', 1)")
tdSql.execute("insert into car values('2019-12-31 23:59:59', 1)")
tdSql.execute("insert into car values('2020-01-01 12:00:00', 1)")
tdSql.execute("insert into car values('2020-01-02 12:00:00', 1)")
tdSql.execute("insert into car values('2020-01-03 12:00:00', 1)")
tdSql.execute("insert into car values('2020-01-04 12:00:00', 1)")
tdSql.execute("insert into car values('2020-01-05 12:00:00', 1)")
tdSql.execute("insert into car values('2020-01-31 12:00:00', 1)")
tdSql.execute("insert into car values('2020-02-01 12:00:00', 1)")
tdSql.execute("insert into car values('2020-02-02 12:00:00', 1)")
tdSql.execute("insert into car values('2020-02-29 12:00:00', 1)")
tdSql.execute("insert into car values('2020-03-01 12:00:00', 1)")
tdSql.execute("insert into car values('2020-03-02 12:00:00', 1)")
tdSql.execute("insert into car values('2020-03-15 12:00:00', 1)")
tdSql.execute("insert into car values('2020-03-31 12:00:00', 1)")
tdSql.execute("insert into car values('2020-05-01 12:00:00', 1)")
tdSql.query("select count(*) from car interval(1n)")
tdSql.checkData(0, 1, 1)
tdSql.checkData(1, 1, 1)
tdSql.checkData(2, 1, 1)
tdSql.checkData(3, 1, 6)
tdSql.checkData(4, 1, 3)
tdSql.checkData(5, 1, 4)
tdSql.checkData(6, 1, 1)
tdSql.query("select count(*) from car interval(1n) order by ts desc")
tdSql.checkData(6, 1, 1)
tdSql.checkData(5, 1, 1)
tdSql.checkData(4, 1, 1)
tdSql.checkData(3, 1, 6)
tdSql.checkData(2, 1, 3)
tdSql.checkData(1, 1, 4)
tdSql.checkData(0, 1, 1)
tdSql.query("select count(*) from car interval(2n)")
tdSql.checkData(0, 1, 1)
tdSql.checkData(1, 1, 1)
tdSql.checkData(2, 1, 1)
tdSql.checkData(3, 1, 9)
tdSql.checkData(4, 1, 4)
tdSql.checkData(5, 1, 1)
tdSql.query("select count(*) from car interval(2n) order by ts desc")
tdSql.checkData(5, 1, 1)
tdSql.checkData(4, 1, 1)
tdSql.checkData(3, 1, 1)
tdSql.checkData(2, 1, 9)
tdSql.checkData(1, 1, 4)
tdSql.checkData(0, 1, 1)
tdSql.query("select count(*) from car interval(1y)")
tdSql.checkData(0, 1, 3)
tdSql.checkData(1, 1, 14)
tdSql.query("select count(*) from car interval(2y)")
tdSql.checkData(0, 1, 3)
tdSql.checkData(1, 1, 14)
def superTable(self):
tdSql.execute("create table cars(ts timestamp, s int) tags(id int)")
tdSql.execute("create table car0 using cars tags(0)")
tdSql.execute("create table car1 using cars tags(0)")
tdSql.execute("create table car2 using cars tags(0)")
tdSql.execute("create table car3 using cars tags(0)")
tdSql.execute("create table car4 using cars tags(0)")
tdSql.execute("insert into car0 values('2019-01-01 00:00:00', 1)")
tdSql.execute("insert into car1 values('2019-05-13 12:00:00', 1)")
tdSql.execute("insert into car2 values('2019-12-31 23:59:59', 1)")
tdSql.execute("insert into car1 values('2020-01-01 12:00:00', 1)")
tdSql.execute("insert into car1 values('2020-01-02 12:00:00', 1)")
tdSql.execute("insert into car1 values('2020-01-03 12:00:00', 1)")
tdSql.execute("insert into car1 values('2020-01-04 12:00:00', 1)")
tdSql.execute("insert into car1 values('2020-01-05 12:00:00', 1)")
tdSql.execute("insert into car1 values('2020-01-31 12:00:00', 1)")
tdSql.execute("insert into car1 values('2020-02-01 12:00:00', 1)")
tdSql.execute("insert into car2 values('2020-02-02 12:00:00', 1)")
tdSql.execute("insert into car2 values('2020-02-29 12:00:00', 1)")
tdSql.execute("insert into car3 values('2020-03-01 12:00:00', 1)")
tdSql.execute("insert into car3 values('2020-03-02 12:00:00', 1)")
tdSql.execute("insert into car3 values('2020-03-15 12:00:00', 1)")
tdSql.execute("insert into car4 values('2020-03-31 12:00:00', 1)")
tdSql.execute("insert into car3 values('2020-05-01 12:00:00', 1)")
tdSql.query("select count(*) from cars interval(1n)")
tdSql.checkData(0, 1, 1)
tdSql.checkData(1, 1, 1)
tdSql.checkData(2, 1, 1)
tdSql.checkData(3, 1, 6)
tdSql.checkData(4, 1, 3)
tdSql.checkData(5, 1, 4)
tdSql.checkData(6, 1, 1)
tdSql.query("select count(*) from cars interval(1n) order by ts desc")
tdSql.checkData(6, 1, 1)
tdSql.checkData(5, 1, 1)
tdSql.checkData(4, 1, 1)
tdSql.checkData(3, 1, 6)
tdSql.checkData(2, 1, 3)
tdSql.checkData(1, 1, 4)
tdSql.checkData(0, 1, 1)
tdSql.query("select count(*) from cars interval(2n)")
tdSql.checkData(0, 1, 1)
tdSql.checkData(1, 1, 1)
tdSql.checkData(2, 1, 1)
tdSql.checkData(3, 1, 9)
tdSql.checkData(4, 1, 4)
tdSql.checkData(5, 1, 1)
tdSql.query("select count(*) from cars interval(2n) order by ts desc")
tdSql.checkData(5, 1, 1)
tdSql.checkData(4, 1, 1)
tdSql.checkData(3, 1, 1)
tdSql.checkData(2, 1, 9)
tdSql.checkData(1, 1, 4)
tdSql.checkData(0, 1, 1)
tdSql.query("select count(*) from cars interval(1y)")
tdSql.checkData(0, 1, 3)
tdSql.checkData(1, 1, 14)
tdSql.query("select count(*) from cars interval(2y)")
tdSql.checkData(0, 1, 3)
tdSql.checkData(1, 1, 14)
def run(self):
tdSql.prepare()
self.singleTable()
self.superTable()
def stop(self):
tdSql.close()
tdLog.success("%s successfully executed" % __file__)
tdCases.addWindows(__file__, TDTestCase())
tdCases.addLinux(__file__, TDTestCase())