From 0cdcfffcf95efb731ce3ed67e7e7a83b144c8032 Mon Sep 17 00:00:00 2001
From: 2881099 <2881099@qq.com>
Date: Fri, 25 Dec 2020 18:58:07 +0800
Subject: [PATCH] Optimize internal code

---
 .../FreeSql.Extensions.JsonMap.zip               | Bin 0 -> 1833 bytes
 FreeSql/Internal/UtilsExpressionTree.cs          |   4 +++-
 2 files changed, 3 insertions(+), 1 deletion(-)
 create mode 100644 Extensions/FreeSql.Extensions.JsonMap/FreeSql.Extensions.JsonMap.zip

diff --git a/Extensions/FreeSql.Extensions.JsonMap/FreeSql.Extensions.JsonMap.zip b/Extensions/FreeSql.Extensions.JsonMap/FreeSql.Extensions.JsonMap.zip
new file mode 100644
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diff --git a/FreeSql/Internal/UtilsExpressionTree.cs b/FreeSql/Internal/UtilsExpressionTree.cs
index 9e570b04..9b84beed 100644
--- a/FreeSql/Internal/UtilsExpressionTree.cs
+++ b/FreeSql/Internal/UtilsExpressionTree.cs
@@ -187,7 +187,9 @@ namespace FreeSql.Internal
                 }
                 try
                 {
-                    col.DbDefaultValue = common.GetNoneParamaterSqlValue(new List<DbParameter>(), "init", col, colattr.MapType, defaultValue);
+                    var initParms = new List<DbParameter>();
+                    col.DbDefaultValue = common.GetNoneParamaterSqlValue(initParms, "init", col, colattr.MapType, defaultValue);
+                    if (initParms.Any()) col.DbDefaultValue = "NULL";
                 }
                 catch
                 {