Hive | map数据类型的用法

平时不多用到map类型，此次用到了记录一下。 举个栗子：web select mid, tags['电影'] as movie, tags['音乐'] as music from( select mid,str_to_map(concat_ws(',',collect_list(concat(key,":",value)))) as tags from ( select mid, key, con

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