#25002: Postgresql migration fails when changing a CharField to a TimeField
-------------------------------+--------------------
     Reporter:  dirkcuys       |      Owner:  nobody
         Type:  Uncategorized  |     Status:  new
    Component:  Uncategorized  |    Version:  1.8
     Severity:  Normal         |   Keywords:
 Triage Stage:  Unreviewed     |  Has patch:  0
Easy pickings:  0              |      UI/UX:  0
-------------------------------+--------------------
 The code from the migration is as follows:

 {{{#!python
 migrations.AlterField(
     model_name='studygroup',
     name='time',
     field=models.TimeField(),
 ),
 }}}

 The field used to be a models.CharField()

 The error follows:

 {{{
 django.db.utils.ProgrammingError: column "time" cannot be cast
 automatically to type time without time zone
 HINT:  Specify a USING expression to perform the conversion
 }}}

 I can manually fix this using SQL:

 {{{
 ALTER TABLE "studygroups_studygroup" ALTER COLUMN "time" TYPE time USING
 "time"::time;
 }}}

--
Ticket URL: <https://code.djangoproject.com/ticket/25002>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

-- 
You received this message because you are subscribed to the Google Groups 
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/django-updates/051.4f07fd06c681e2f61683a710d3b9d70a%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to