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我想在表格中的json对象的postgreSql中使用where条件。我需要这样做,例如:我有一个表'测试'它有三列名称(varchar),url(varchar),更多(json)。我需要检索css21Colors = Purple的日期。 more是一个json类型,下面是更多字段的值。从postgreSQL查询json对象
请让我知道同样的查询语法应该是什么?
more = {"colorTree":{"Purple":[{"Spanish Violet":"#522173"}],
"Brown":[{"Dark Puce":"#4e3347"}],"White":[{"White":"#ffffff"}],
"Black":[{"Eerie Black":"#1d0d27"}],"Gray":[{"Rose Quartz":"#a091a4"}]},
"sizeoutscount":0,"css21Colors":{"Purple":69,"Brown":5,"White":4,"Black":17,"Gray":3},
"sizeins": [],"sizeinscount":0,"sizeouts":[],"allsizes":["8","10","16"],
"css3Colors": {"Rose Quartz":3,"White":4,"Dark Puce":5,"Eerie Black":17,"Spanish
Violet":69},"hexColors":{"#522173":69,"#4e3347":5,"#ffffff":4,"#1d0d27":17,"#a091a4":3}}
提及PostgreSQL版本('select version()') –
PostgreSQL版本是9.4.0 – singh