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Posted to notifications@superset.apache.org by GitBox <gi...@apache.org> on 2019/01/30 00:43:21 UTC
[GitHub] john-bodley opened a new pull request #6777: Revert "Removing
uniqueness constraints on tables table"
john-bodley opened a new pull request #6777: Revert "Removing uniqueness constraints on tables table"
URL: https://github.com/apache/incubator-superset/pull/6777
Reverting apache/incubator-superset#6718 as the resulting uniqueness is too long in MySQL, i.e.,
```
sqlalchemy.exc.OperationalError: (_mysql_exceptions.OperationalError) (1071, 'Specified key was too long; max key length is 767 bytes') [SQL: 'ALTER TABLE
```
Per https://github.com/apache/incubator-superset/pull/5449 the column sizes need to be reduced in order to prevent the issue, however there are [open concerns](https://github.com/apache/incubator-superset/pull/5449#discussion_r205573492) able reducing the size of the table name.
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