Query returns 'Result' object has no attribute 'json_data'

Issue Summary

Query result is
Error running query: 'Result' object has no attribute 'json_data'

select * from japanese limit 10; >>>error
select id, time from japanese limit 10; >>> success

It happens only when Japanese is included in database fields.
It did not happen in Redash v7.
I checked “Enable multi-byte” , but it didn’t fix.

Technical details:

  • Redash Version: 8.0.0.b32245
  • Browser/OS: Ubuntu 20.04.1 LTS
  • How did you install Redash:
# mkdir /opt/redash/
# cd /opt
# git clone https://github.com/getredash/setup.git
# cd setup
# sh setup.sh

I used dump data to recover the database (postgres).
any ideas?

It was resolved by the upgrade to v9 or v10.

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