From 9b3d7aa410ce1ae8db405466ab4bec9c16860877 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Sat, 7 May 2022 18:19:56 +0800
Subject: [PATCH] fix(query): remove a false assert.

---
 source/libs/function/src/builtinsimpl.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index 0808ec58b0..896c1c9164 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -1446,11 +1446,6 @@ int32_t diffFunction(SqlFunctionCtx* pCtx) {
 
   // initial value is not set yet
   if (numOfElems <= 0) {
-    /*
-     * 1. current block and blocks before are full of null
-     * 2. current block may be null value
-     */
-    assert(pCtx->hasNull);
     return 0;
   } else {
     return (isFirstBlock) ? numOfElems - 1 : numOfElems;
-- 
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