querying JSON field

[deelienardy]

i have table something like this on postgres

CREATE TABLE "user" (
    "id" INT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
    "metadata" JSONB
)

while i know it is bad querying from JSON, but this is legacy data structure, so shit happen
hahaha

let say data on metadata is like this

{
    "address1": "test"
}

when i create query

-- name: FindByAddress :one
SELECT * FROM "user" WHERE "metadata"->>'address1' = $1 LIMIT 1

the generated parameters will become like this

type FindByAddressParams struct {
	metadata json.RawMessage
}

So, the question should it type on parameter become interface{} since just the owner of data who knows JSON value ?

[kyleconroy]

The type of the address1 field on the JSON column isn't known at compile time. You're correct that the parameter type should be interface{} instead of json.RawMessage. I've created #743 to track that bug.

You probably know the type of address1, so you can always cast it to text:

-- name: FindByAddress :one
SELECT * FROM authors WHERE "metadata"->>'address1' = $1::text LIMIT 1;

[deelienardy]

Hi @kyleconroy, before thanks for the reply.

The link to playground is broken, so assuming it, i guess what do you mean is like this

SELECT * FROM "user" WHERE "metadata"->>'address1'::TEXT = $1 LIMIT 1;

or whatever type to cast ?

[domino14]

why is it bad to query JSONB?

[acaloiaro]

It's not.