在Postgres中過濾頂級JSONB數組文檔？

我有一個Postgres的表名爲「事件」與「ID」，「名」的一列，「發票」：在Postgres中過濾頂級JSONB數組文檔？

          Table "public.events" 
     Column   |   Type    |       Modifiers 
-----------------------+-----------------------------+--------------------------------------------------------------- 
id     | integer      | not null default nextval('events_id_seq'::regclass) 
name     | character varying(255)  | not null 
invoices    | jsonb      | not null

每行有型jsonb與數組作爲最高一級的發票列元素：

Example Content: 

[{"InvoiceId":4,"CustomerId":14,"InvoiceDate":"2009-01-06T00:00:00","BillingAddress":"8210 111 ST NW","BillingCity":"Edmonton","BillingState":"AB","BillingCountry":"Canada","BillingPostalCode":"T6G 2C7","Total":8.91}, 
{"InvoiceId":5,"CustomerId":23,"InvoiceDate":"2009-01-11T00:00:00","BillingAddress":"69 Salem Street","BillingCity":"Boston","BillingState":"MA","BillingCountry":"USA","BillingPostalCode":"2113","Total":13.86}, 
{"InvoiceId":8,"CustomerId":40,"InvoiceDate":"2009-02-01T00:00:00","BillingAddress":"8, Rue Hanovre","BillingCity":"Paris","BillingState":null,"BillingCountry":"France","BillingPostalCode":"75002","Total":1.98}, 
{"InvoiceId":9,"CustomerId":42,"InvoiceDate":"2009-02-02T00:00:00","BillingAddress":"9, Place Louis Barthou","BillingCity":"Bordeaux","BillingState":null,"BillingCountry":"France","BillingPostalCode":"33000","Total":3.96}, 
{"InvoiceId":10,"CustomerId":46,"InvoiceDate":"2009-02-03T00:00:00","BillingAddress":"3 Chatham Street","BillingCity":"Dublin","BillingState":"Dublin","BillingCountry":"Ireland","BillingPostalCode":null,"Total":5.94}, 
{"InvoiceId":11,"CustomerId":52,"InvoiceDate":"2009-02-06T00:00:00","BillingAddress":"202 Hoxton Street","BillingCity":"London","BillingState":null,"BillingCountry":"United Kingdom","BillingPostalCode":"N1 5LH","Total":8.91}, 
{"InvoiceId":13,"CustomerId":16,"InvoiceDate":"2009-02-19T00:00:00","BillingAddress":"1600 Amphitheatre Parkway","BillingCity":"Mountain View","BillingState":"CA","BillingCountry":"USA","BillingPostalCode":"94043-1351","Total":0.99}, 
{"InvoiceId":14,"CustomerId":17,"InvoiceDate":"2009-03-04T00:00:00","BillingAddress":"1 Microsoft Way","BillingCity":"Redmond","BillingState":"WA","BillingCountry":"USA","BillingPostalCode":"98052-8300","Total":1.98}, 
{"InvoiceId":15,"CustomerId":19,"InvoiceDate":"2009-03-04T00:00:00","BillingAddress":"1 Infinite Loop","BillingCity":"Cupertino","BillingState":"CA","BillingCountry":"USA","BillingPostalCode":"95014","Total":1.98}, 
{"InvoiceId":16,"CustomerId":21,"InvoiceDate":"2009-03-05T00:00:00","BillingAddress":"801 W 4th Street","BillingCity":"Reno","BillingState":"NV","BillingCountry":"USA","BillingPostalCode":"89503","Total":3.96}]

我怎麼返回有一個「總」比5.00大發票每行ID，名稱的列表中設置的請求，並且陣列？

來源

2017-03-06 Jack Murphy

您是指所有發票大於5的發票事件？或者所有發票金額大於5的事件？只過濾那些大於5的發票或無論總額是多少，都要退回所有發票？ –

select id, name, invoices 
from 
    events 
    cross join lateral 
    jsonb_array_elements(invoices) o (o) 
group by 1,2,3 
having sum((o ->> 'Total')::numeric > 5)

來源

2017-03-06 19:48:52

在Postgres中過濾頂級JSONB數組文檔？

回答

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