fix(query): fix max/min with null input

320525ed · Ganlin Zhao · 2dc24b26 · 320525ed
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source/libs/function/src/builtinsimpl.c source/libs/function/src/builtinsimpl.c +5 -0

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--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -1577,6 +1577,11 @@ int32_t doMinMaxHelper(SqlFunctionCtx* pCtx, int32_t isMinFunc) {
    }
  }

+  if (numOfElems == 0) {
+    GET_RES_INFO(pCtx)->isNullRes = 1;
+    numOfElems = 1;
+  }
+
 _min_max_over:
  return numOfElems;
 }