questions about preview and column stats

[danielchu1227]

Dears,
I have 2 questions, do anyone knows?
1.for the preview function:
According to the tutorial on the official website, the local environment of docker-compose-local.yml is built and after add the priview_client, the corresponding changes are also displayed in the container, but the preview cannot be displayed on the page

do anyone know why? do anyone success?
2.for the column stats:
I see the python code; it seems that the example column stats is written in advance. If someone uploads his/her own new table in the MySQL and neo4j, can Amundsen also shows column stats? I'd already have the superset.
Thanks