xinyiZzz commented on code in PR #9301:
URL: https://github.com/apache/incubator-doris/pull/9301#discussion_r863506407
##########
be/src/olap/tablet_schema.cpp:
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@@ -309,16 +309,21 @@ void TabletColumn::init_from_pb(const ColumnPB& column) {
_has_default_value = column.has_default_value();
if (_has_default_value) {
_default_value = column.default_value();
+ } else {
+ _default_value = "";
Review Comment:
I understand std::string cannot be made `null`, the default value when
created is `empty string`.
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