[TD-2169]<fix>: fix memory leaks in group by query processing.

7090b3fe · Haojun Liao · 0fe731af · 7090b3fe
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Showing with 6 addition and 2 deletion

src/query/src/qExecutor.c src/query/src/qExecutor.c +6 -2

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--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -1372,8 +1372,12 @@ static int32_t setGroupResultOutputBuf(SQueryRuntimeEnv *pRuntimeEnv, char *pDat
  }

  if (type == TSDB_DATA_TYPE_BINARY || type == TSDB_DATA_TYPE_NCHAR) {
+    if (pResultRow->key == NULL) {
      pResultRow->key = malloc(varDataTLen(pData));
      varDataCopy(pResultRow->key, pData);
+    } else {
+      assert(memcmp(pResultRow->key, pData, varDataTLen(pData)) == 0);
+    }
  } else {
    pResultRow->win.skey = v;
    pResultRow->win.ekey = v;