#sql("sjjhBylp")

  MERGE INTO jc_lp T1

  USING (

  select

  #for(x : cond)

    #if(x.value==null||x.value=="")

  '' as #(x.key)

    #else

        #if("shsj"==x.key||"ccsj"==x.key||"xgsj"==x.key||"zhgxsj"==x.key)

    to_timestamp(#("'"+x.value+"'"),'yyyy-mm-dd hh24:mi:ss.ff') as #(x.key)

    #else

    #("'"+x.value+"'") as #(x.key)

    #end

    #end

  #(for.last?"":",")

  #end

  from dual) T2

  ON ( T1.id=T2.id)

  WHEN MATCHED THEN

      UPDATE SET

      #for(x : cond)

      #if("id"!=x.key)

        T1.#(x.key) = T2.#(x.key)

        #(for.last?"":",") 

      #end

      #end

  WHEN NOT MATCHED THEN 

    INSERT (

     #for(x : cond)

    #(x.key)

    #(for.last?"":",") 

     #end

    ) VALUES(

    #for(x : cond)

    T2.#(x.key)

    #(for.last?"":",") 

     #end

    );

#end

上面的代码#if("shsj"==x.key||"ccsj"==x.key||"xgsj"==x.key||"zhgxsj"==x.key) 这行能否改成判断字段值的类型？如上面的写法怎么能优化下