From f697e079831f3bd5f6a287a0fea3578b0b81b87d Mon Sep 17 00:00:00 2001
From: slguan <slguan@taosdata.com>
Date: Wed, 18 Sep 2019 17:04:33 +0800
Subject: [PATCH] fix issue #525

---
 src/client/src/tscFunctionImpl.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/client/src/tscFunctionImpl.c b/src/client/src/tscFunctionImpl.c
index bc111fd4f0..8e7ee8447a 100644
--- a/src/client/src/tscFunctionImpl.c
+++ b/src/client/src/tscFunctionImpl.c
@@ -3293,7 +3293,13 @@ bool spread_function(SQLFunctionCtx *pCtx) {
         }
       }
     } else {
-      // do nothing
+      if (pCtx->intermediateBuf[0].dKey > pCtx->intermediateBuf[1].dKey) {
+        pCtx->intermediateBuf[0].dKey = pCtx->intermediateBuf[1].dKey;
+      }
+
+      if (pCtx->intermediateBuf[3].dKey < pCtx->intermediateBuf[2].dKey) {
+        pCtx->intermediateBuf[3].dKey = pCtx->intermediateBuf[2].dKey;
+      }
     }
 
     goto _spread_over;
-- 
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