Dynamic input not leading to changes on the front end

// Inferring type for the findMany argument
type FindManyArg = Parameters<DB['query']['demotable']['findMany']>[0]

// ...

//Setting up the procedure
discordTest: privateProcedure
  .input(input => input as FindManyArg)
  .query(async ({ input }) => {
    const result = await db.query.demotable.findMany(input)
    return result
}),

// On the front end,
const { data: demo } = trpc.discordTest.useQuery({
  columns: { updatedAt: false }, // <== this is properly typed and intellisense is working
})
console.log(demo?.[0].updatedAt) // <=== does not error

// ============================

// Hardcoding columns does properly reflect on the front end
const result = await db.query.demotable.findMany({
  ...input,
  columns: { updatedAt: false },
})
return result

// On the front end,
const { data: demo } = trpc.discordTest.useQuery({})
console.log(demo?.[0].updatedAt) // <=== errors as expected