![]() ![]() ![]() Build a JSON object of that as the property tags.Īssuming that what you actually have is many rows, each with a single JSON array of tag strings (like the image), you can use the following simpler solution instead: SELECT json_build_object('tags', jsonb_agg(DISTINCT tag.value))ĬROSS JOIN jsonb_array_elements(a.Aggregate distinct tag values as a JSON array.Of each of those objects, shred the tags property also.Shred the main array of each row of accounts into individual rows of objects. 1 Answer Sorted by: 0 you can build both JSON arrays and objects without using aggregates as long as the size of each is fixed: WHERE dimensions > jsonbbuildarray (jsonbbuildobject (,),jsonbbuildobject (,)) But maybe you should be using some C++ library to build the JSON and pass it already formed down to PostgreSQL.I have tried the jsonb '->' operator: select DISTINCT AC.tags->'tags' (I am using distinct cause it can have duplicate values inside the json tags, and i need a list without duplicates values) This is a Spring Boot application that uses this library to persist JSON data (JSON Java Object) in a PostgreSQL json column and for querying JSON data from. If you are on a different version and something mentioned doesn't work as expected, check the docs to verify that what is mentioned in this post exists in the version. The documentation below lays it out pretty clear. Note: If you'd like to see the updated syntax for JSON support in PostgreSQL 14 checkout the post here The content in this post is directed at the functionality of PostgreSQL 13. This query is returning me this result: [ 2 Answers Sorted by: 5 I'd recommend (if it isn't already) converting to the type from json to jsonb and adding a GIN index. It consists of lightweight data for data exchange. 1 If your table has unique value or has id you can use below query: Sample table and data structure: dbfiddle select distinct id, min ('date') filter (where 'date' > currentdate) over (partition by id) from test t cross join jsonbtorecordset (t. Overview of JSON JavaScript Object Notation (JSON) is an accessible format for representing data in a structured way. Add tags jsonb default ''::jsonb not null įrom accounts as AC where account_type = 'TEAM' In this article, we will explore JSONQUERY () functions in SQL Server to extract JSON objects and array from the JSON Data. ![]()
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