[td-225] refactor.

ed13f4e5 · Haojun Liao · d76117d8 · ed13f4e5
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src/query/src/qExecutor.c src/query/src/qExecutor.c +2 -1

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--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -1306,7 +1306,8 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SGroupbyOperatorInfo *pIn
    }
    if (IS_VAR_DATA_TYPE(type)) {
-      if(varDataLen(val) == varDataLen(pInfo->prevData) && memcmp(varDataVal(pInfo->prevData), varDataVal(val), varDataLen(val)) == 0) {
+      int32_t len = varDataLen(val);
+      if(len == varDataLen(pInfo->prevData) && memcmp(varDataVal(pInfo->prevData), varDataVal(val), len) == 0) {
        num++;
        continue;
      }