MongoDB中对JSON数组内date字段创建唯一索引的方法？-灵析社区

ApplePro

"Create an Index on an Embedded Field in an Array" (https://link.segmentfault.com/?enc=fUjsKEREbazyedR03esllg%3D%3D.InVqmxk0cWk0rBddFpov7VtaiaOLJwltvULPuIoBUntBdu3KJGtk3D%2BHm0yGUBkgVbuJZlKZlw8QsAzYid0rIZd3G0JnsZveWvWFCttezwhFGtt7RszyrYZP4Uur5DT3d0OOl1Rzn0QZGTvu3gS0Qg%3D%3D)