Issue description: account 4024555 下面挂了一个contact 4098335：
但是在Fiori ui上，根据Thompson搜索不出这个contact出来：
Debug后台逻辑：
Search bar里输入的Thompson作为substringof的参数传到后台，按照fullName搜索：
https://sap.corp:4080/sap/opu/odata/sap/CRM_TASK/ContactCollection?$skip=0&$top=20&$filter=accountID%20eq%20%274024555%27%20and%20substringof(%27Thompson%27,fullName)&$inlinecount=allpages
accountID：
fullname：
cl_crm_bp_odata_rt
select_entityset_by_sql
from
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where
select contact~partner AS contact_id, contact~partner_guid AS contact_guid, contact~persnumber AS pers_number, contact~name_last AS name_last, contact~name_first AS name_first, contact~birthdt AS birthdate, contact~title AS title, contact~title_aca1 AS title_aca1, account~partner AS account_id, account~partner_guid AS account_guid, account~name_org1 AS company_name1, account~name_org2 AS company_name2, account~name_last AS ACCOUNT_NAME_LAST, account~name_first AS ACCOUNT_NAME_FIRST, account~name_grp1 AS ACCOUNT_NAME_GRP1, account~name_grp2 AS ACCOUNT_NAME_GRP2, account~type AS account_category, account~persnumber AS account_pers_number, cp_relation~fnctn AS function, cp_relation~dprtmnt AS department, relation_cp~xdfrel AS is_main_contact, relation_cp~crdat AS contact_crdat, relation_cp~crtim AS contact_crtim, contact~mc_name1 AS contact_mc_name1, contact~mc_name2 AS contact_mc_name2, account~mc_name1 AS account_mc_name1
最后很清楚了，contact 4098335 在BUT000中的数据，MC_NAME1和MC_NAME2都不包含输入的string，所以搜不出结果：
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