From e5443631062710ce55527b3d363963359db372d3 Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sdsang@taosdata.com>
Date: Tue, 15 Sep 2020 18:56:32 +0800
Subject: [PATCH] [TD-1459] <fix>: fix compile error for release build type.

---
 cmake/define.inc              | 2 +-
 src/client/src/tscSQLParser.c | 1 +
 src/client/src/tscUtil.c      | 1 +
 src/query/src/qExecutor.c     | 1 +
 4 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/cmake/define.inc b/cmake/define.inc
index 28770be254..84df6f5405 100755
--- a/cmake/define.inc
+++ b/cmake/define.inc
@@ -100,7 +100,7 @@ IF (TD_LINUX)
   ENDIF ()
   
   SET(DEBUG_FLAGS "-O0 -DDEBUG")
-  SET(RELEASE_FLAGS "-O0")
+  SET(RELEASE_FLAGS "-O0 -Wno-unused-variable -Wunused-but-set-variable")
   
   IF (${COVER} MATCHES "true")
     MESSAGE(STATUS "Test coverage mode, add extra flags")
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index c248b08ddd..f9f72f9174 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -5271,6 +5271,7 @@ static void doUpdateSqlFunctionForColPrj(SQueryInfo* pQueryInfo) {
       }
 
       assert(qualifiedCol);
+      qualifiedCol = qualifiedCol;
     }
   }
 }
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 80e3828c9d..636fccd3a0 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -1788,6 +1788,7 @@ static void doSetSqlExprAndResultFieldInfo(SQueryInfo* pQueryInfo, SQueryInfo* p
     }
 
     assert(matched);
+    matched = matched;
   }
 
   tscFieldInfoUpdateOffset(pNewQueryInfo);
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index d48d7d5ea1..ed093e4143 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -5463,6 +5463,7 @@ static int32_t getColumnIndexInSource(SQueryTableMsg *pQueryMsg, SSqlFuncMsg *pE
     }
   }
   assert(0);
+  return -1;
 }
 
 bool validateExprColumnInfo(SQueryTableMsg *pQueryMsg, SSqlFuncMsg *pExprMsg, SColumnInfo* pTagCols) {
-- 
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