达梦生成的SqlFunc.GetDate() ，生成sql脚本sysdate 带双号 返回

_db.Updateable<Lib_ItemsCollection>()

    .SetColumns(it => it.ItemStorageClass == 2)

    .SetColumns(it => it.UpdateTime == SqlFunc.GetDate()) 

    .Where(it => it.ItemID == 810464290177093 && it.ItemSchoolID == 1)

    .ExecuteCommand();

生成的sql

UPDATE "Lib_ItemsCollection"

            SET "ItemStorageClass" = 3 

                "UpdateTime" = "sysdate"

            WHERE "ItemID" = 810464290177093  AND "ItemSchoolID" = 1