issues: 1821108702

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association pull_request body repo type active_lock_reason performed_via_github_app reactions draft state_reason
1821108702 I_kwDOCGYnMM5si-ne 579 Special handling for SQLite column of type `JSON` 15178711 open 0     0 2023-07-25T20:37:23Z 2023-07-25T20:37:23Z   CONTRIBUTOR  

sqlite-utils should detect and have specially handling for column with a JSON column. For example:

sql CREATE TABLE "dogs" ( id INTEGER PRIMARY KEY, name TEXT, friends JSON );

Automatic Nesting

According to "Nested JSON Values", sqlite-utils will only expand JSON if the --json-cols flag is passed. It looks like it'll try to json.load all text column to test if its JSON, which can get expensive on non-json columns.

Instead, sqlite-utils should be default (ie without the --json-cols flags) do the maybe_json() operation on columns with a declared JSON type. So the above table would expand the "friends" column as expected, withoutthe --json-cols flag:

bash sqlite-utils dogs.db "select * from dogs" | python -mjson.tool

[ { "id": 1, "name": "Cleo", "friends": [ { "name": "Pancakes" }, { "name": "Bailey" } ] } ]

I'm sure there's other ways sqlite-utils can specially handle JSON columns, so keeping this open while I think of more

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