Support for querying JSON data info

Issue type:

[ ] question [ ] bug report [x] feature request [ ] documentation issue

Database system/driver:

[ ] cordova [ ] mongodb [x] mssql [x] mysql / mariadb [ ] oracle [x] postgres [ ] sqlite [ ] sqljs [ ] react-native

TypeORM version:

[x] latest [ ] @next [ ] 0.x.x (or put your version here)

It would be nice to be able to have a single API to be able to query information from a property in the JSON data stored in a mysql / mariadb / postgres database, as they all seem to have their own APIs.

[mudkipme]

I store various JSONB data in Postgres. It would be nice to use

const user = await getRepository(User).findOne({
  profile: {
    id: profile.id,
    provider: profile.provider,
  },
});

Instead of:

const user = await getRepository(User).createQueryBuilder()
  .where('profile @> :profile', {
    profile: {
      id: profile.id,
      provider: profile.provider,
    },
  }).getOne();

[gostriksh]

Hi, any update on this thread? 🙏