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PostgreSQL return result set as JSON array?

... an array. SELECT json_agg(t) FROM t There is no jsonb (introduced in 9.4) version of json_agg. You can either aggregate the rows into an array and then convert them: SELECT to_jsonb(array_agg(t)) FROM t or combine json_agg with a cast: SELECT json_agg(t)::jsonb FROM t My testing suggests t...
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What is the most efficient/elegant way to parse a flat table into a tree?

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Understanding Canvas and Surface concepts

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How to sleep for five seconds in a batch file/cmd [duplicate]

...MultiplyByZer0 3,73333 gold badges2727 silver badges4646 bronze badges answered Nov 4 '09 at 8:20 MartinMartin 35.2k2020 gold badg...
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When to add what indexes in a table in Rails

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SQL Server Script to create a new user

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XSD: What is the difference between xs:integer and xs:int?

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Cmake vs make sample codes?

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Why does casting int to invalid enum value NOT throw exception?

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What's the difference between :: (double colon) and -> (arrow) in PHP?

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