Error: 1054 Unknown column 'keyword_relationships.rank' in 'order clause'

The following SQL statement was executed:
select * from (select distinct properties_rent.* from properties_rent,property_keywords where property_keywords.keyword_id='26879' and property_keywords.property_id=properties_rent.id and properties_rent.id!='1967140' and properties_rent.block is null and properties_rent.status!='n' order by property_keywords.rank desc ) sponsors union select * from ( select properties_rent.* from properties_rent, keyword_relationships where properties_rent.keyword_id=keyword_relationships.related_keyword_id and keyword_relationships.keyword_id='26879' and properties_rent.block is null and properties_rent.status ='n' and properties_rent.id!='1967140' order by keyword_relationships.rank desc, properties_rent.id desc ) normal limit 0,8

Error: 0

The following SQL statement was executed:
select count(*) counter from properties_rent where telephone = '13335070801' and block is null

青岛市北市北 敦化路 hao loufang
在青岛租房子  青岛找房子：  非中介  

市北 敦化路 hao loufang

    发布日期：2008年04月16日
  • 市北
  • 市北-敦化路-山东路附近-良辰美景小区-117号路口
  • 3室
  • 132平方米
  • 52000 元/月
    		•
  • 好房精装修，内设施齐全，随时可用，适用于国外人事居住和办公司用。 楼层19 . 双向电梯 . 无业配套齐全。

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