The short answer is 'yes'.

A look at that column for my depth=0 posts shows some empty fields, some text starting with

[{"voter":"bleepcoin","weight":462,"rshares":3874889785,"percent":100,"reputation":0,"time":"2019-02-13T15:19:00"} ......

and some starting with

[{"percent":1900,"reputation":"90169188750593","rshares":"91937688256","time":"2019-02-14T20:29:45","voter":"mammasitta","weight":9617},{"percent":3300,"reputation":"90455657914116","rshares ......

One for when I have a weekend spare :)