#35000: Skip redundant defaults to allow INSTANT longtext (among others) column
addition in MySQL
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Reporter: Tobias | Owner: nobody
Krönke |
Type: | Status: new
Uncategorized |
Component: | Version: 4.2
Migrations | Keywords: mysql, migrations,
Severity: Normal | performance
Triage Stage: | Has patch: 1
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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MySQL 8+ is capable of adding new columns instantly just by editing the
meta information. It automatically chooses the fasted algorithm for ALTER
TABLE statements (https://dev.mysql.com/doc/refman/8.0/en/alter-
table.html), so I was wondering if the migration SQL code generated by
django actually makes use of this.
PR is here: https://github.com/django/django/pull/17539
Original comment with workaround:
https://code.djangoproject.com/ticket/27676#comment:8
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Ticket URL: <https://code.djangoproject.com/ticket/35000>
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