diff --git a/tools/configMgt/autoConfigure.cpp b/tools/configMgt/autoConfigure.cpp
index 659192b6d..85702952a 100644
--- a/tools/configMgt/autoConfigure.cpp
+++ b/tools/configMgt/autoConfigure.cpp
@@ -2165,6 +2165,7 @@ int main(int argc, char* argv[])
     string PmMaxMemorySmallSide;
     string ThreadPoolSize;
 
+
     try
     {
         ColScanReadAheadBlocks = sysConfigOld->getConfig("PrimitiveServers", "ColScanReadAheadBlocks");
diff --git a/utils/funcexp/func_concat.cpp b/utils/funcexp/func_concat.cpp
index 90404b232..39a72b4fa 100644
--- a/utils/funcexp/func_concat.cpp
+++ b/utils/funcexp/func_concat.cpp
@@ -55,11 +55,14 @@ string Func_concat::getStrVal(Row& row,
                               bool& isNull,
                               CalpontSystemCatalog::ColType&)
 {
-    string ret = stringValue(parm[0], row, isNull);
+	string ret;
+    string tmp;
+    stringValue(parm[0], row, isNull, ret);
 
     for ( unsigned int id = 1 ; id < parm.size() ; id++)
     {
-        ret.append( stringValue(parm[id], row, isNull) );
+		stringValue(parm[id], row, isNull, tmp);
+        ret.append(tmp);
     }
 
     return ret;
diff --git a/utils/funcexp/func_concat_ws.cpp b/utils/funcexp/func_concat_ws.cpp
index 5268e17b7..767544291 100644
--- a/utils/funcexp/func_concat_ws.cpp
+++ b/utils/funcexp/func_concat_ws.cpp
@@ -49,8 +49,8 @@ string Func_concat_ws::getStrVal(Row& row,
                                  bool& isNull,
                                  CalpontSystemCatalog::ColType&)
 {
-    string delim = stringValue(parm[0], row, isNull);
-
+	string delim;
+    stringValue(parm[0], row, isNull, delim);
     if (isNull)
         return "";
 
@@ -63,8 +63,8 @@ string Func_concat_ws::getStrVal(Row& row,
 
     for ( unsigned int id = 1 ; id < parm.size() ; id++)
     {
-        string tstr = stringValue(parm[id], row, isNull);
-
+		string tstr;
+        stringValue(parm[id], row, isNull, tstr); 
         if (isNull)
         {
             isNull = false;
@@ -94,10 +94,11 @@ string Func_concat_ws::getStrVal(Row& row,
 
 #else
     string str;
-
+    string tmp;
     for ( uint32_t i = 1 ; i < parm.size() ; i++)
     {
-        str += string(stringValue(parm[i], row, isNull).c_str());
+		string(stringValue(parm[i], row, isNull).c_str(), tmp);
+        str += tmp;
 
         if (isNull)
         {
diff --git a/utils/funcexp/func_elt.cpp b/utils/funcexp/func_elt.cpp
index 1cf394444..d34dafa78 100644
--- a/utils/funcexp/func_elt.cpp
+++ b/utils/funcexp/func_elt.cpp
@@ -100,7 +100,9 @@ string Func_elt::getStrVal(rowgroup::Row& row,
         return "";
     }
 
-    return stringValue(parm[number], row, isNull);
+    std::string ret;
+	stringValue(parm[number], row, isNull, ret);
+    return ret;
 
 }
 
diff --git a/utils/funcexp/func_insert.cpp b/utils/funcexp/func_insert.cpp
index 5782eb699..88d731eb4 100644
--- a/utils/funcexp/func_insert.cpp
+++ b/utils/funcexp/func_insert.cpp
@@ -88,13 +88,13 @@ std::string Func_insert::getStrVal(rowgroup::Row& row,
                                    bool& isNull,
                                    execplan::CalpontSystemCatalog::ColType&)
 {
-    const string& tstr = stringValue(fp[0], row, isNull);
-
+	string tstr;
+    stringValue(fp[0], row, isNull, tstr);
     if (isNull)
         return "";
 
-    const string& tnewstr = stringValue(fp[3], row, isNull);
-
+	string tnewstr;
+    stringValue(fp[3], row, isNull, tnewstr);
     if (isNull)
         return "";
 
diff --git a/utils/funcexp/func_repeat.cpp b/utils/funcexp/func_repeat.cpp
index 03a3bdd37..b99114c5a 100644
--- a/utils/funcexp/func_repeat.cpp
+++ b/utils/funcexp/func_repeat.cpp
@@ -61,7 +61,9 @@ std::string Func_repeat::getStrVal(rowgroup::Row& row,
                                    bool& isNull,
                                    execplan::CalpontSystemCatalog::ColType& op_ct)
 {
-    string str = stringValue(fp[0], row, isNull);
+	string str;
+
+    stringValue(fp[0], row, isNull, str);
 
     if (str.empty() || str == "")
         return "";
diff --git a/utils/funcexp/func_reverse.cpp b/utils/funcexp/func_reverse.cpp
index 3fdcdeb2e..6ef4fcf1f 100644
--- a/utils/funcexp/func_reverse.cpp
+++ b/utils/funcexp/func_reverse.cpp
@@ -65,7 +65,8 @@ std::string Func_reverse::getStrVal(rowgroup::Row& row,
                                     bool& isNull,
                                     execplan::CalpontSystemCatalog::ColType&)
 {
-    string str = stringValue(fp[0], row, isNull);
+	string str;
+    stringValue(fp[0], row, isNull, str);
 
     // We used to reverse in the string buffer, but that doesn't
     // work for all compilers as some re-use the buffer on simple
diff --git a/utils/funcexp/functor_str.h b/utils/funcexp/functor_str.h
index b7051be4e..8b6c10404 100644
--- a/utils/funcexp/functor_str.h
+++ b/utils/funcexp/functor_str.h
@@ -100,7 +100,7 @@ public:
     }
 
 protected:
-    const std::string& stringValue(execplan::SPTP& fp, rowgroup::Row& row, bool& isNull)
+	const void stringValue(execplan::SPTP& fp, rowgroup::Row& row, bool& isNull, std::string& fFloatStr)
     {
         // Bug3788, use the shorter of fixed or scientific notation for floating point values.
         // [ the default format in treenode.h is fixed-point notation ]
@@ -120,7 +120,8 @@ protected:
                 break;
 
             default:
-                return fp->data()->getStrVal(row, isNull);
+				fFloatStr = fp->data()->getStrVal(row, isNull);
+                return;
                 break;
         }
 
@@ -140,10 +141,7 @@ protected:
             fFloatStr += buf;
         }
 
-        return fFloatStr;
     }
-
-    std::string fFloatStr;
 };