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具有空值的CouchBase-Lite复合键范围

couchbase-lite kotlin android java

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Isaac Obella · 技术社区 · 8 年前

我可以用这种格式的复合键查看天气数据。

[ "District", "2018", "05", "23", "06", "00", "00" ]

在服务器上,我可以使用startkey和endkey查询一天的天气。

startkey=[ "District","2018","05","23",null,null,null]
endkey=[ "District","2018","05","23","\u0fff","\u0fff","\u0fff"]

这给了我所有的天气 2018-05-23区 . 现在,在将文档同步到Android上的CouchBase Lite之后,我尝试复制关键范围。我试过了

startkey=arrayListOf("District","2018","05","23",null,null,null)
endkey=arrayListOf("District","2018","05","23","\u0fff","\u0fff","\u0fff")

但这会返回一个空数据集。如何格式化密钥以复制在服务器上所做的操作。

1 回复 | 直到 8 年前

1

Rizwan 8 年前

CouchBase服务器 和 古奇基岩 对查询有语法差异,因为它清楚地描述了我们在服务器端构建复合键数组的方式。空值已被解析为获取要输出的词典正确值,而在 Unicode码 提供于 终端密钥 假设你的复合钥匙

[ "District", "2018", "05", "23", "06", "00", "00" ]
[ "DistrictName","year","month","day","hour,"minute","second"]

在MobileSide上可能有两个选项( 古奇基岩 )查询不提供小时/分钟/秒值的复合键或空值和Unicode的其他值表示形式:

来自:

startkey=arrayListOf("District","2018","05","23",null,null,null)
endkey=arrayListOf("District","2018","05","23","\u0fff","\u0fff","\u0fff")

到:

startkey=arrayListOf("District","2018","05","23","00","00","01")
endkey=arrayListOf("District","2018","05","23","23","59","59")