From 6f524d20ac3ec3e4bf9a9c4f1e431c35467166a4 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Mon, 25 May 2020 19:27:19 +0800
Subject: [PATCH] [td-225]fix bugs in diff

---
 src/client/src/tscFunctionImpl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/client/src/tscFunctionImpl.c b/src/client/src/tscFunctionImpl.c
index a265243ce9..81602d17f4 100644
--- a/src/client/src/tscFunctionImpl.c
+++ b/src/client/src/tscFunctionImpl.c
@@ -3158,7 +3158,7 @@ static void diff_function(SQLFunctionCtx *pCtx) {
           pOutput += 1;
           pTimestamp += 1;
         } else {
-          *pOutput = pData[i] - pCtx->param[1].i64Key;
+          *pOutput = pData[i] - pCtx->param[1].dKey;
           *pTimestamp = pCtx->ptsList[i];
           pOutput += 1;
           pTimestamp += 1;
@@ -3189,7 +3189,7 @@ static void diff_function(SQLFunctionCtx *pCtx) {
           pOutput += 1;
           pTimestamp += 1;
         } else {
-          *pOutput = pData[i] - pCtx->param[1].i64Key;
+          *pOutput = pData[i] - pCtx->param[1].dKey;
           *pTimestamp = pCtx->ptsList[i];
           
           pOutput += 1;
-- 
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