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utf8mb4 support - german characters #8933

PRamia opened this issue Jan 7, 2020 · 1 comment

utf8mb4 support - german characters #8933

PRamia opened this issue Jan 7, 2020 · 1 comment


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@PRamia PRamia commented Jan 7, 2020


  • superset version: 0.34.0
  • python version: 3.6.9
  • Running Superset with Docker Containers


Make sure these boxes are checked before submitting your issue - thank you!

  • [ x] I have checked the superset logs for python stacktraces and included it here as text if there are any.
  • I have reproduced the issue with at least the latest released version of superset.
  • [ x] I have checked the issue tracker for the same issue and I haven't found one similar.


I cannot render properly the german characters öäü. The data comes from an external MySQL server with utf8mb4 encoding + collation utf8mb4_unicode_520_ci

my contains:
SQLALCHEMY_DATABASE_URI = 'mysql://root:@db:3306/superset?charset=utf8mb4'

into the docker-compose.yml file added the following command under mysql:
command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_520_ci

mysql> SHOW VARIABLES LIKE 'collation%';
| Variable_name | Value |
| collation_connection | utf8mb4_general_ci |
| collation_database | utf8mb4_unicode_520_ci |
| collation_server | utf8mb4_unicode_520_ci |
3 rows in set (0.00 sec)

mysql> SHOW VARIABLES LIKE 'character_set%';
| Variable_name | Value |
| character_set_client | utf8mb4 |
| character_set_connection | utf8mb4 |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
| character_set_results | utf8mb4 |
| character_set_server | utf8mb4 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |

Maybe somebody faced this problem before and could help me.

Thanks a lot!


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@issue-label-bot issue-label-bot bot commented Jan 7, 2020

Issue-Label Bot is automatically applying the label #bug to this issue, with a confidence of 0.59. Please mark this comment with 👍 or 👎 to give our bot feedback!

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@issue-label-bot issue-label-bot bot added the #bug label Jan 7, 2020
@PRamia PRamia closed this Jan 14, 2020
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