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feat(query): add timetruncate function 

TD-14243
This commit is contained in:
Ganlin Zhao 2022-04-13 12:38:57 +08:00 committed by Ganlin Zhao
parent a497670f29
commit 61b39204b5
3 changed files with 218 additions and 0 deletions
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1
include/libs/scalar/scalar.h
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@ -76,6 +76,7 @@ int32_t castFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutp
/* Time related functions */ /* Time related functions */
int32_t toISO8601Function(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput); int32_t toISO8601Function(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
int32_t toUnixtimestampFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput); int32_t toUnixtimestampFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
int32_t timeTruncateFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
bool getTimePseudoFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv); bool getTimePseudoFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);

16
source/libs/function/src/builtins.c
View File

@ -413,6 +413,16 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.sprocessFunc = toUnixtimestampFunction, .sprocessFunc = toUnixtimestampFunction,
.finalizeFunc = NULL .finalizeFunc = NULL
}, },
{
.name = "timetruncate",
.type = FUNCTION_TYPE_TIMETRUNCATE,
.classification = FUNC_MGT_SCALAR_FUNC,
.checkFunc = checkAndGetResultType,
.getEnvFunc = NULL,
.initFunc = NULL,
.sprocessFunc = timeTruncateFunction,
.finalizeFunc = NULL
},
{ {
.name = "_rowts", .name = "_rowts",
.type = FUNCTION_TYPE_ROWTS, .type = FUNCTION_TYPE_ROWTS,
@ -631,9 +641,15 @@ int32_t checkAndGetResultType(SFunctionNode* pFunc) {
} }
case FUNCTION_TYPE_TO_ISO8601: { case FUNCTION_TYPE_TO_ISO8601: {
pFunc->node.resType = (SDataType) { .bytes = 64, .type = TSDB_DATA_TYPE_BINARY}; pFunc->node.resType = (SDataType) { .bytes = 64, .type = TSDB_DATA_TYPE_BINARY};
break;
} }
case FUNCTION_TYPE_TO_UNIXTIMESTAMP: { case FUNCTION_TYPE_TO_UNIXTIMESTAMP: {
pFunc->node.resType = (SDataType) { .bytes = tDataTypes[TSDB_DATA_TYPE_BIGINT].bytes, .type = TSDB_DATA_TYPE_BIGINT}; pFunc->node.resType = (SDataType) { .bytes = tDataTypes[TSDB_DATA_TYPE_BIGINT].bytes, .type = TSDB_DATA_TYPE_BIGINT};
break;
}
case FUNCTION_TYPE_TIMETRUNCATE: {
pFunc->node.resType = (SDataType) { .bytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP};
break;
} }
case FUNCTION_TYPE_TBNAME: { case FUNCTION_TYPE_TBNAME: {

201
source/libs/scalar/src/sclfunc.c
View File

@ -903,6 +903,207 @@ int32_t toUnixtimestampFunction(SScalarParam *pInput, int32_t inputNum, SScalarP
return TSDB_CODE_SUCCESS; return TSDB_CODE_SUCCESS;
} }
int32_t timeTruncateFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
int32_t type = GET_PARAM_TYPE(&pInput[0]);
int32_t timePrec = GET_PARAM_PRECISON(&pInput[0]);
if (inputNum != 2) {
return TSDB_CODE_FAILED;
}
if (type != TSDB_DATA_TYPE_BIGINT && type != TSDB_DATA_TYPE_TIMESTAMP &&
type != TSDB_DATA_TYPE_BINARY && type != TSDB_DATA_TYPE_NCHAR) {
return TSDB_CODE_FAILED;
}
if (GET_PARAM_TYPE(&pInput[1]) != TSDB_DATA_TYPE_BIGINT) { //time_unit
return TSDB_CODE_FAILED;
}
int64_t timeUnit, timeVal = 0;
GET_TYPED_DATA(timeUnit, int64_t, GET_PARAM_TYPE(&pInput[1]), pInput[1].columnData->pData);
int64_t factor = (timePrec == TSDB_TIME_PRECISION_MILLI) ? 1000 :
(timePrec == TSDB_TIME_PRECISION_MICRO ? 1000000 : 1000000000);
char *input = NULL;
if (IS_VAR_DATA_TYPE(type)) {
input = pInput[0].columnData->pData + pInput[0].columnData->varmeta.offset[0];
} else {
input = pInput[0].columnData->pData;
}
for (int32_t i = 0; i < pInput[0].numOfRows; ++i) {
if (colDataIsNull_s(pInput[0].columnData, i)) {
colDataAppendNULL(pOutput->columnData, i);
continue;
}
if (IS_VAR_DATA_TYPE(type)) { /* datetime format strings */
convertStringToTimestamp(type, input, TSDB_TIME_PRECISION_NANO, &timeVal);
//If converted value is less than 10digits in second, use value in second instead
int64_t timeValSec = timeVal / 1000000000;
if (timeValSec < 1000000000) {
timeVal = timeValSec;
}
} else if (type == TSDB_DATA_TYPE_BIGINT) { /* unix timestamp */
GET_TYPED_DATA(timeVal, int64_t, type, input);
} else if (type == TSDB_DATA_TYPE_TIMESTAMP) { /* timestamp column*/
GET_TYPED_DATA(timeVal, int64_t, type, input);
int64_t timeValSec = timeVal / factor;
if (timeValSec < 1000000000) {
timeVal = timeValSec;
}
}
char buf[20] = {0};
NUM_TO_STRING(TSDB_DATA_TYPE_BIGINT, &timeVal, sizeof(buf), buf);
int32_t tsDigits = (int32_t)strlen(buf);
timeUnit = timeUnit * 1000 / factor;
switch (timeUnit) {
case 0: { /* 1u */
if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000 * 1000;
//} else if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
// //timeVal = timeVal / 1000;
} else if (tsDigits <= TSDB_TIME_PRECISION_SEC_DIGITS) {
timeVal = timeVal * factor;
} else {
timeVal = timeVal * 1;
}
break;
}
case 1: { /* 1a */
if (tsDigits == TSDB_TIME_PRECISION_MILLI_DIGITS) {
timeVal = timeVal * 1;
} else if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
timeVal = timeVal / 1000 * 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000000 * 1000000;
} else if (tsDigits <= TSDB_TIME_PRECISION_SEC_DIGITS){
timeVal = timeVal * factor;
} else {
assert(0);
}
break;
}
case 1000: { /* 1s */
if (tsDigits == TSDB_TIME_PRECISION_MILLI_DIGITS) {
timeVal = timeVal / 1000 * 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
timeVal = timeVal / 1000000 * 1000000;
} else if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000000000 * 1000000000;
} else if (tsDigits <= TSDB_TIME_PRECISION_SEC_DIGITS) {
timeVal = timeVal * factor;
} else {
assert(0);
}
break;
}
case 60000: { /* 1m */
if (tsDigits == TSDB_TIME_PRECISION_MILLI_DIGITS) {
timeVal = timeVal / 1000 / 60 * 60 * 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
timeVal = timeVal / 1000000 / 60 * 60 * 1000000;
} else if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000000000 / 60 * 60 * 1000000000;
} else if (tsDigits <= TSDB_TIME_PRECISION_SEC_DIGITS) {
timeVal = timeVal * factor / factor / 60 * 60 * factor;
} else {
assert(0);
}
break;
}
case 3600000: { /* 1h */
if (tsDigits == TSDB_TIME_PRECISION_MILLI_DIGITS) {
timeVal = timeVal / 1000 / 3600 * 3600 * 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
timeVal = timeVal / 1000000 / 3600 * 3600 * 1000000;
} else if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000000000 / 3600 * 3600 * 1000000000;
} else if (tsDigits <= TSDB_TIME_PRECISION_SEC_DIGITS) {
timeVal = timeVal * factor / factor / 3600 * 3600 * factor;
} else {
assert(0);
}
break;
}
case 86400000: { /* 1d */
if (tsDigits == TSDB_TIME_PRECISION_MILLI_DIGITS) {
timeVal = timeVal / 1000 / 86400 * 86400 * 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
timeVal = timeVal / 1000000 / 86400 * 86400 * 1000000;
} else if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000000000 / 86400 * 86400 * 1000000000;
} else if (tsDigits <= TSDB_TIME_PRECISION_SEC_DIGITS) {
timeVal = timeVal * factor / factor / 86400* 86400 * factor;
} else {
assert(0);
}
break;
}
case 604800000: { /* 1w */
if (tsDigits == TSDB_TIME_PRECISION_MILLI_DIGITS) {
timeVal = timeVal / 1000 / 604800 * 604800 * 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
timeVal = timeVal / 1000000 / 604800 * 604800 * 1000000;
} else if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000000000 / 604800 * 604800 * 1000000000;
} else if (tsDigits <= TSDB_TIME_PRECISION_SEC_DIGITS) {
timeVal = timeVal * factor / factor / 604800 * 604800* factor;
} else {
assert(0);
}
break;
}
default: {
timeVal = timeVal * 1;
break;
}
}
//truncate the timestamp to db precision
switch (timePrec) {
case TSDB_TIME_PRECISION_MILLI: {
if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
timeVal = timeVal / 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000000;
}
break;
}
case TSDB_TIME_PRECISION_MICRO: {
if (tsDigits == TSDB_TIME_PRECISION_NANO_DIGITS) {
timeVal = timeVal / 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_MILLI_DIGITS) {
timeVal = timeVal * 1000;
}
break;
}
case TSDB_TIME_PRECISION_NANO: {
if (tsDigits == TSDB_TIME_PRECISION_MICRO_DIGITS) {
timeVal = timeVal * 1000;
} else if (tsDigits == TSDB_TIME_PRECISION_MILLI_DIGITS) {
timeVal = timeVal * 1000000;
}
break;
}
}
colDataAppend(pOutput->columnData, i, (char *)&timeVal, false);
if (IS_VAR_DATA_TYPE(type)) {
input += varDataTLen(input);
} else {
input += tDataTypes[type].bytes;
}
}
pOutput->numOfRows = pInput->numOfRows;
return TSDB_CODE_SUCCESS;
}
int32_t atanFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) { int32_t atanFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
return doScalarFunctionUnique(pInput, inputNum, pOutput, atan); return doScalarFunctionUnique(pInput, inputNum, pOutput, atan);
} }