Forked from mpneuried/postgres_add_json_sub_array_unique.sql
Created
January 25, 2020 06:35
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Add and remove elements unique to a Postgres jsonb sub key: Short a Set implemetation
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UPDATE public.mytable SET | |
jsonfieldname = jsonb_set( jsonfieldname, '{json_obj_key}', array_to_json( | |
ARRAY( | |
SELECT DISTINCT( UNNEST( ARRAY( | |
SELECT json_array_elements_text( COALESCE( jsonfieldname::json->'json_obj_key', '[]' ) ) | |
) || ARRAY['Element to add'] ) ) | |
) | |
)::jsonb ) | |
WHERE id = 23 | |
RETURNING *; |
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UPDATE public.mytable SET | |
jsonfieldname = jsonb_set( jsonfieldname, '{json_obj_key}', array_to_json( | |
array_remove( ARRAY( | |
SELECT json_array_elements_text( COALESCE( jsonfieldname::json->'json_obj_key', '[]' ) ) | |
), 'Element to remove' ) | |
)::jsonb ) | |
WHERE id = 23 | |
RETURNING *; |
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