tiny fix (#127)

pingcap · Jul 22, 2019 · bc79718 · bc79718
1 parent 4f7c2d9
commit bc79718
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/dbms/src/Storages/Transaction/TiDB.cpp b/dbms/src/Storages/Transaction/TiDB.cpp
@@ -15,6 +15,9 @@ ColumnInfo::ColumnInfo(Poco::JSON::Object::Ptr json) { deserialize(json); }
 Field ColumnInfo::defaultValueToField() const
 {
     auto & value = origin_default_value;
+    if (value.isEmpty()) {
+        return Field();
+    }
     switch (tp)
     {
         // Integer Type.