0
這裏是我的JSON模式:如何在DynamoDB(Python)中使用FilterExpression over Nested Attributes?
item=item={"Company":"ABCD",
"Industry":"Invest.Services",
"Sector":"Financial",
"Financial_Results":
[{"Date":"2007-03-31","Frequency":"Annual","REV1":"20","REV3":"33"},
{"Date":"2008-03-31","Frequency":"Annual","REV1":"20","REV3":"34.43"},
{"Date":"2012-03-31","Frequency":"Annual","REV1":"30","REV3":Decimal("230")},
{"Date":"2013-03-31","Frequency":"Quarterly","REV1":Decimal("30"),"REV3":"3.32"},
{"Date":"2013-06-31","Frequency":"Quarterly","REV1":Decimal("20"),"REV3":"-0.343"},
{"Date":"2013-09-31","Frequency":"Quarterly","REV1":"20.50","REV3":"-0.543"}]
}
table.put_item(Item=item)
item=item={"Company":"EFGH",
"Industry":"Mining",
"Sector":"Metals",
"Financial_Results":
[{"Date":"2007-03-31","Frequency":"Annual","REV1":"20","REV3":"33"},
{"Date":"2008-03-31","Frequency":"Annual","REV1":"20","REV3":"34.43"},
{"Date":"2012-03-31","Frequency":"Annual","REV1":"30","REV3":Decimal("230")},
{"Date":"2013-03-31","Frequency":"Quarterly","REV1":Decimal("30"),"REV3":"3.32"},
{"Date":"2013-06-31","Frequency":"Quarterly","REV1":Decimal("20"),"REV3":"-0.343"},
{"Date":"2014-03-31","Frequency":"Annual","REV1":"20.50","REV3":"-0.543"}]
}
table.put_item(Item=item)
公司 - 分區鍵(散列關鍵字)。
無範圍鍵(排序鍵)。
我的要求是:
- 我如何過濾「日期」的屬性相當於或高於「2013年3月31日」和「REV1」只有小於零組的項目屬性更多。
注: 我已經提到了以下鏈接 http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Expressions.Attributes.html#DocumentPaths
我仍然沒有得到任何conclusions.Kindly幫助我。在此先感謝
你好,歡迎來到Stack Overflow,請花點時間閱讀[歡迎導覽](https://stackoverflow.com/tour)以瞭解你在這裏的方式(並獲得你的第一張徽章),閱讀如何創建[mcve]示例並檢查[問],以便增加獲得反饋和有用答案的機會。 – garfbradaz
只是它不可能,因爲它是一個對象列表。 – notionquest
@notionquest感謝您的寶貴回覆。但是,有沒有其他方法可以像上面提到的那樣獲得相同的功能。 –