【字段URL】数据结构：（name使用数据库字段名规范，支持中文，不支持特殊符号，例如空格 - （）() . / \ $ % & 等等）
[{"name":"region","label":"Region","type":"string"},{"name":"date","label":"Date","type":"date"},{"name":"revenue","label":"Revenue","type":"double"}]
【数据URL】数据结构 :
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