fix:fix error in table scan by group

a3033b59 · wmmhello · f1860b79 · a3033b59
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source/libs/executor/src/scanoperator.c source/libs/executor/src/scanoperator.c +1 -2

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--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -381,8 +381,7 @@ static SSDataBlock* doTableScanImpl(SOperatorInfo* pOperator) {
    uint64_t *groupId = taosHashGet(pTableScanInfo->pGroupSet, pTableScanInfo->keyBuf, len);
    if (groupId) {
      pBlock->info.groupId = *groupId;
-
-    }else{
+    }else if(len != 0){
      pBlock->info.groupId = calcGroupId(pTableScanInfo->keyBuf, len);
      taosHashPut(pTableScanInfo->pGroupSet, pTableScanInfo->keyBuf, len, &pBlock->info.groupId, sizeof(uint64_t));
    }