Total data size equal to 0 when data is present in datasource

Hello

I added some data in differents datasources and when I check the Datasource tab, I see few issues:

  • “total data size” is always equal to 0.0 B,
  • “segments size minimum/average/maximum” is always equal to 0 0 0,
  • “average row size (bytes)” is always equal to 0

However, I have data in my datasources that I can query (plus, “total rows” is not equal to 0)

Can someone explain me why ?

I attach a screenshot to support my words.

Thanks in advance,

Relates to Apache Druid 0.22.1