Merge pull request #11326 from taosdata/fix/TD-14572

<fix>[query]: fix length/char_length data block pointer with proper offset

source/libs/scalar/src/sclfunc.c

@@ -295,11 +295,11 @@ static int32_t doLengthFunction(SScalarParam *pInput, int32_t inputNum, SScalarP
   SColumnInfoData *pInputData  = pInput->columnData;
   SColumnInfoData *pOutputData = pOutput->columnData;
 
-  char *in = pInputData->pData;
+  char *in = pInputData->pData + pInputData->varmeta.offset[0];
   int16_t *out = (int16_t *)pOutputData->pData;
 
   for (int32_t i = 0; i < pInput->numOfRows; ++i) {
-    if (colDataIsNull_f(pInputData->nullbitmap, i)) {
+    if (colDataIsNull_s(pInputData, i)) {
       colDataSetNull_f(pOutputData->nullbitmap, i);
       continue;
     }
@@ -357,7 +357,7 @@ int32_t concatFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOu
   }
   for (int32_t i = 0; i < inputNum; ++i) {
     pInputData[i] = pInput[i].columnData;
-    input[i] = pInputData[i]->pData;
+    input[i] = pInputData[i]->pData + pInputData[i]->varmeta.offset[0];
     int32_t factor = 1;
     if (hasNcharCol && (GET_PARAM_TYPE(&pInput[i]) == TSDB_DATA_TYPE_VARCHAR)) {
       factor = TSDB_NCHAR_SIZE;
@@ -438,7 +438,7 @@ int32_t concatWsFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *p
   }
   for (int32_t i = 0; i < inputNum; ++i) {
     pInputData[i] = pInput[i].columnData;
-    input[i] = pInputData[i]->pData;
+    input[i] = pInputData[i]->pData + pInputData[i]->varmeta.offset[0];
     int32_t factor = 1;
     if (hasNcharCol && (GET_PARAM_TYPE(&pInput[i]) == TSDB_DATA_TYPE_VARCHAR)) {
       factor = TSDB_NCHAR_SIZE;
@@ -509,7 +509,7 @@ static int32_t doCaseConvFunction(SScalarParam *pInput, int32_t inputNum, SScala
   SColumnInfoData *pInputData  = pInput->columnData;
   SColumnInfoData *pOutputData = pOutput->columnData;
 
-  char *input  = pInputData->pData;
+  char *input  = pInputData->pData + pInputData->varmeta.offset[0];
   char *output = NULL;
 
   int32_t outputLen = pInputData->varmeta.length;
@@ -554,7 +554,7 @@ static int32_t doTrimFunction(SScalarParam *pInput, int32_t inputNum, SScalarPar
   SColumnInfoData *pInputData  = pInput->columnData;
   SColumnInfoData *pOutputData = pOutput->columnData;
 
-  char *input  = pInputData->pData;
+  char *input  = pInputData->pData + pInputData->varmeta.offset[0];
   char *output = NULL;
 
   int32_t outputLen = pInputData->varmeta.length;
@@ -606,7 +606,7 @@ int32_t substrFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOu
   SColumnInfoData *pInputData  = pInput->columnData;
   SColumnInfoData *pOutputData = pOutput->columnData;
 
-  char *input  = pInputData->pData;
+  char *input  = pInputData->pData + pInputData->varmeta.offset[0];
   char *output = NULL;
 
   int32_t outputLen = pInputData->varmeta.length * pInput->numOfRows;