public static List<ScopeDefaultColumn> getDefaultColumns(String scopeName) {
        List<ScopeDefaultColumn> scopeDefaultColumns = SCOPE_COLUMNS.get(scopeName);
        if (scopeDefaultColumns == null) {
            throw new UnexpectedException("ScopeDefine name = " + scopeName + " not found.");
        }
        return scopeDefaultColumns;
    }
Get the default columns defined in Scope. All those columns will forward to persistent entity.

@param scopeName of the default columns
oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/DefaultScopeDefine.java