Ruby on rails 创建索引时添加where子句_Ruby On Rails_Postgresql

Ruby on rails 创建索引时添加where子句

ruby-on-rails postgresql

Ruby on rails 创建索引时添加where子句,ruby-on-rails,postgresql,Ruby On Rails,Postgresql,我有一个ruby中的DB迁移脚本如何在迁移脚本中添加where子句 unless index_exists?(:hotel_room_types, [:hotel_id, :dynamic_price_from]) add_index :hotel_room_types, [:hotel_id, :dynamic_price_from], unique: true, where: (status =1), name: 'by_hotel_id_from' end

我有一个ruby中的DB迁移脚本

如何在迁移脚本中添加where子句

unless index_exists?(:hotel_room_types, [:hotel_id, :dynamic_price_from])
      add_index :hotel_room_types, [:hotel_id, :dynamic_price_from], 
      unique: true, where: (status =1), name: 'by_hotel_id_from'
 end

PG::DatatypeMismatch: ERROR:  argument of WHERE must be type boolean, not type integer

第1行：…otel_room_types”（“hotel_id”，“dynamic_price_from”），其中1将

WHERE作为字符串
add_index :hotel_room_types, [:hotel_id, :dynamic_price_from], 
  unique: true, where: 'status = 1', name: 'by_hotel_id_from'