longtext类型字段没法使用in过滤

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【GBase版本】:9.5.3.28.31 patch.1.b821c648e1

【操作系统】:redhat-linux

【CPU】:

【问题描述】*:
执行下面的sql报错：(GBA-01EX-700) Gbase general error: Column __fcol_1  is not supported data type

select 
   `T_D21A46`.`param_code` as `__fcol_0`, 
   `T_D21A46`.`param_name` as `__fcol_1`, 
   `T_D21A46`.`param_type_code` as `__fcol_2`
 from (SELECT param_code,parent_id,CONCAT(param_code, ' ：', param_name) AS param_name,param_type_code FROM sys_level_param
) as `T_D21A46`
) as `t0`
where (
 `t0`.`__fcol_2` in ('C_CURR')
 and `t0`.`__fcol_1` in ('CNY ：人民币元')
)
param_code和param_name字段类型都是varchar(10922)，使用create TEMPORARY TABLE tmp as SELECT param_code,parent_id,CONCAT(param_code, ' ：', param_name) AS param_name_concat,param_type_code FROM sys_level_param创建tmp表后，发现param_name_concat字段的类型的longtext，直接使用select * from tmp where param_name_concat in ('a）也报错Column param_name_concat is not supported data type