But, range queries are not supported by the GIN index; asking for all products with the SIZE variations having value in a certain number range will not utilize the index. In cases like this, it is necessary to move some fields out of JSON documents to separate columns/tables and index them traditionally, using old and proven B-trees. In these instances, Mongo is more forgiving and flexible. It allows for strategies of the kind:
2007年10月21日，在党的十七大闭幕前，胡锦涛同志同宋平同志在一起。
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Go to worldnews。谷歌对此有专业解读
——蔡强代表（海南省人民政府党组成员、秘书长）
// basic matching