feat(query): add irate function scalar version

TD-17344

include/libs/scalar/scalar.h

@@ -107,6 +107,7 @@ int32_t leastSQRScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarPa
 int32_t percentileScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
 int32_t apercentileScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
 int32_t spreadScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
+int32_t irateScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
 
 #ifdef __cplusplus
 }

source/libs/function/src/builtins.c

@@ -2217,6 +2217,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .getEnvFunc   = getIrateFuncEnv,
     .initFunc     = irateFuncSetup,
     .processFunc  = irateFunction,
+    .sprocessFunc = irateScalarFunction,
     .finalizeFunc = irateFinalize
   },
   {

source/libs/scalar/src/sclfunc.c

@@ -2380,3 +2380,29 @@ int32_t spreadScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarPara
   pOutput->numOfRows = 1;
   return TSDB_CODE_SUCCESS;
 }
+
+int32_t irateScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
+  SColumnInfoData *pInputData  = pInput->columnData;
+  SColumnInfoData *pOutputData = pOutput->columnData;
+
+  int32_t type = GET_PARAM_TYPE(pInput);
+  //int64_t count = 0, sum = 0, qSum = 0;
+  bool hasNull = false;
+
+  for (int32_t i = 0; i < pInput->numOfRows; ++i) {
+    if (colDataIsNull_s(pInputData, i)) {
+      hasNull = true;
+      break;
+    }
+  }
+
+  double *out  = (double *)pOutputData->pData;
+  if (hasNull) {
+    colDataAppendNULL(pOutputData, 0);
+  } else {
+    *out = 0;
+  }
+
+  pOutput->numOfRows = 1;
+  return TSDB_CODE_SUCCESS;
+}