[TD-11222]<feature>(query): Histogram function

src/client/src/tscSQLParser.c

@@ -2681,7 +2681,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
   const char* msg22 = "invalid parameters for bin_desciption";
   const char* msg23 = "parameter/bin out of range [-DBL_MAX, DBL_MAX]";
   const char* msg24 = "width param cannot be 0";
-  const char* msg25 = "count param should be greater than 0";
+  const char* msg25 = "count param should be in range [1, 1000]";
   const char* msg26 = "start param cannot be 0 with 'log_bin'";
   const char* msg27 = "factor param cannot be negative or equal to 0/1";
   const char* msg28 = "the second paramter of diff should be 0 or 1";
@@ -3443,7 +3443,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
           return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg22);
         }
 
-        if (count->valueint <= 0) {
+        if (count->valueint <= 0 || count->valueint > 1000) {
           return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg25);
         }
 

src/query/src/qAggMain.c

@@ -392,8 +392,8 @@ int32_t getResultDataInfo(int32_t dataType, int32_t dataBytes, int32_t functionI
       return TSDB_CODE_SUCCESS;
     } else if (functionId == TSDB_FUNC_HISTOGRAM) {
       *type = TSDB_DATA_TYPE_BINARY;
-      *bytes = (sizeof(SHistogramFuncInfo) + param * sizeof(SHistogramFuncBin));
-      *interBytes = *bytes;
+      *bytes = 512;
+      *interBytes = (sizeof(SHistogramFuncInfo) + param * sizeof(SHistogramFuncBin));
       return TSDB_CODE_SUCCESS;
     }
   }
@@ -501,8 +501,8 @@ int32_t getResultDataInfo(int32_t dataType, int32_t dataBytes, int32_t functionI
     *interBytes = sizeof(SElapsedInfo);
   } else if (functionId == TSDB_FUNC_HISTOGRAM) {
     *type = TSDB_DATA_TYPE_BINARY;
-    *bytes = 1024;
-    *interBytes = *bytes;
+    *bytes = 512;
+    *interBytes = (sizeof(SHistogramFuncInfo) + param * sizeof(SHistogramFuncBin));
   } else {
     return TSDB_CODE_TSC_INVALID_OPERATION;
   }