Do you think it is worth jumping through the hoops to setup crate and learn how to use it? Pi OS is still 32Bit and at this stage I actually did not want to start wrestling with the DB, but rather work with it.
Of course it is always worth it 
But I also understand if you don’t want to newly set-up your Pi. Also if it is an older/slower Pi, you might not be too happy with CrateDBs performance.
If you do however decide to give CrateDB a try, feel free to drop in questions here 