fix(query): fix taosshell crash when arithmetic operation with NULL

concstant

TD-15132

source/libs/scalar/inc/sclvector.h

@@ -86,6 +86,8 @@ static FORCE_INLINE _getDoubleValue_fn_t getVectorDoubleValueFn(int32_t srcType)
     p = getVectorDoubleValue_JSON;
   } else if (srcType == TSDB_DATA_TYPE_BOOL) {
     p = getVectorDoubleValue_BOOL;
+  } else if (srcType == TSDB_DATA_TYPE_NULL) {
+    p = NULL;
   } else {
     assert(0);
   }

source/libs/scalar/src/scalar.c

@@ -591,21 +591,25 @@ EDealRes sclRewriteOperator(SNode** pNode, SScalarCtx *ctx) {
 
   SValueNode *res = (SValueNode *)nodesMakeNode(QUERY_NODE_VALUE);
   if (NULL == res) {
-    sclError("make value node failed");    
-    sclFreeParam(&output);    
+    sclError("make value node failed");
+    sclFreeParam(&output);
     ctx->code = TSDB_CODE_QRY_OUT_OF_MEMORY;
     return DEAL_RES_ERROR;
   }
 
-  res->node.resType = node->node.resType;
   res->translate = true;
 
-  int32_t type = output.columnData->info.type;
-  if (IS_VAR_DATA_TYPE(type)) {  // todo refactor
-    res->datum.p = output.columnData->pData;
-    output.columnData->pData = NULL;
+  if (colDataIsNull_s(output.columnData, 0)) {
+    res->node.resType.type = TSDB_DATA_TYPE_NULL;
   } else {
-    memcpy(nodesGetValueFromNode(res), output.columnData->pData, tDataTypes[type].bytes);
+    res->node.resType = node->node.resType;
+    int32_t type = output.columnData->info.type;
+    if (IS_VAR_DATA_TYPE(type)) {  // todo refactor
+      res->datum.p = output.columnData->pData;
+      output.columnData->pData = NULL;
+    } else {
+      memcpy(nodesGetValueFromNode(res), output.columnData->pData, tDataTypes[type].bytes);
+    }
   }
 
   nodesDestroyNode(*pNode);
@@ -628,7 +632,7 @@ EDealRes sclConstantsRewriter(SNode** pNode, void* pContext) {
 
   if (QUERY_NODE_OPERATOR == nodeType(*pNode)) {
     return sclRewriteOperator(pNode, ctx);
-  }  
+  }
 
   return DEAL_RES_CONTINUE;
 }
@@ -636,7 +640,7 @@ EDealRes sclConstantsRewriter(SNode** pNode, void* pContext) {
 EDealRes sclWalkFunction(SNode* pNode, SScalarCtx *ctx) {
   SFunctionNode *node = (SFunctionNode *)pNode;
   SScalarParam output = {0};
-  
+
   ctx->code = sclExecFunction(node, ctx, &output);
   if (ctx->code) {
     return DEAL_RES_ERROR;
@@ -653,7 +657,7 @@ EDealRes sclWalkFunction(SNode* pNode, SScalarCtx *ctx) {
 EDealRes sclWalkLogic(SNode* pNode, SScalarCtx *ctx) {
   SLogicConditionNode *node = (SLogicConditionNode *)pNode;
   SScalarParam output = {0};
-  
+
   ctx->code = sclExecLogic(node, ctx, &output);
   if (ctx->code) {
     return DEAL_RES_ERROR;

source/libs/scalar/src/sclvector.c

@@ -150,34 +150,36 @@ int64_t getVectorBigintValue_JSON(void *src, int32_t index){
 
 _getBigintValue_fn_t getVectorBigintValueFn(int32_t srcType) {
     _getBigintValue_fn_t p = NULL;
-    if(srcType==TSDB_DATA_TYPE_TINYINT) {
-        p = getVectorBigintValue_TINYINT;
-    }else if(srcType==TSDB_DATA_TYPE_UTINYINT) {
-        p = getVectorBigintValue_UTINYINT;
-    }else if(srcType==TSDB_DATA_TYPE_SMALLINT) {
-        p = getVectorBigintValue_SMALLINT;
-    }else if(srcType==TSDB_DATA_TYPE_USMALLINT) {
-        p = getVectorBigintValue_USMALLINT;
-    }else if(srcType==TSDB_DATA_TYPE_INT) {
-        p = getVectorBigintValue_INT;
-    }else if(srcType==TSDB_DATA_TYPE_UINT) {
-        p = getVectorBigintValue_UINT;
-    }else if(srcType==TSDB_DATA_TYPE_BIGINT) {
-        p = getVectorBigintValue_BIGINT;
-    }else if(srcType==TSDB_DATA_TYPE_UBIGINT) {
-        p = getVectorBigintValue_UBIGINT;
-    }else if(srcType==TSDB_DATA_TYPE_FLOAT) {
-        p = getVectorBigintValue_FLOAT;
-    }else if(srcType==TSDB_DATA_TYPE_DOUBLE) {
-        p = getVectorBigintValue_DOUBLE;
-    }else if(srcType==TSDB_DATA_TYPE_TIMESTAMP) {
-        p = getVectorBigintValue_BIGINT;
-    }else if(srcType==TSDB_DATA_TYPE_BOOL) {
-        p = getVectorBigintValue_BOOL;
-    }else if(srcType==TSDB_DATA_TYPE_JSON) {
-        p = getVectorBigintValue_JSON;
-    }else {
-        assert(0);
+    if (srcType==TSDB_DATA_TYPE_TINYINT) {
+      p = getVectorBigintValue_TINYINT;
+    } else if (srcType==TSDB_DATA_TYPE_UTINYINT) {
+      p = getVectorBigintValue_UTINYINT;
+    } else if (srcType==TSDB_DATA_TYPE_SMALLINT) {
+      p = getVectorBigintValue_SMALLINT;
+    } else if (srcType==TSDB_DATA_TYPE_USMALLINT) {
+      p = getVectorBigintValue_USMALLINT;
+    } else if (srcType==TSDB_DATA_TYPE_INT) {
+      p = getVectorBigintValue_INT;
+    } else if (srcType==TSDB_DATA_TYPE_UINT) {
+      p = getVectorBigintValue_UINT;
+    } else if (srcType==TSDB_DATA_TYPE_BIGINT) {
+      p = getVectorBigintValue_BIGINT;
+    } else if (srcType==TSDB_DATA_TYPE_UBIGINT) {
+      p = getVectorBigintValue_UBIGINT;
+    } else if (srcType==TSDB_DATA_TYPE_FLOAT) {
+      p = getVectorBigintValue_FLOAT;
+    } else if (srcType==TSDB_DATA_TYPE_DOUBLE) {
+      p = getVectorBigintValue_DOUBLE;
+    } else if (srcType==TSDB_DATA_TYPE_TIMESTAMP) {
+      p = getVectorBigintValue_BIGINT;
+    } else if (srcType==TSDB_DATA_TYPE_BOOL) {
+      p = getVectorBigintValue_BOOL;
+    } else if (srcType==TSDB_DATA_TYPE_JSON) {
+      p = getVectorBigintValue_JSON;
+    } else if (srcType==TSDB_DATA_TYPE_NULL){
+      p = NULL;
+    } else {
+      assert(0);
     }
     return p;
 }