#34544: models.TextField with =None filter throws Error for Oracle
-------------------------------------+-------------------------------------
Reporter: Michael D. Smith | Owner: Jatin-tec
Type: Bug | Status: closed
Component: Database layer | Version: 4.2
(models, ORM) |
Severity: Normal | Resolution: needsinfo
Keywords: Oracle isnull lob | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Mariusz Felisiak):
* status: assigned => closed
* resolution: => needsinfo
Old description:
> Model contains
>
> somefield = models.TextField(
> blank=True, null=True
> )
>
> At 4.1.9:
>
> {{{
> print(MyModel.objects.filter(somefield=None).only('id').query)
>
> }}}
>
> {{{
> SELECT "TNAME_MYMODEL"."ID" FROM "TNAME_MYMODEL" WHERE
> "TNAME_MYMODEL"."SOMEFIELD" IS NULL
>
> }}}
> works
>
> At 4.2.0:
>
> {{{
> print(MyModel.objects.filter(somefield=None).only('id').query)
>
> }}}
>
> {{{
> SELECT "TNAME_MYMODEL"."ID" FROM "TNAME_MYMODEL" WHERE
> DBMS_LOB.SUBSTR("TNAME_MYMODEL"."SOMEFIELD") IS NULL
>
> DatabaseError: ORA-06502: PL/SQL: numeric or value error: character
> string buffer too small
> ORA-06512: at line 1
> }}}
New description:
Model contains
{{{
somefield = models.TextField(blank=True, null=True)
}}}
At 4.1.9:
{{{
print(MyModel.objects.filter(somefield=None).only('id').query)
}}}
{{{
SELECT "TNAME_MYMODEL"."ID" FROM "TNAME_MYMODEL" WHERE
"TNAME_MYMODEL"."SOMEFIELD" IS NULL
}}}
works
At 4.2.0:
{{{
print(MyModel.objects.filter(somefield=None).only('id').query)
}}}
{{{
SELECT "TNAME_MYMODEL"."ID" FROM "TNAME_MYMODEL" WHERE
DBMS_LOB.SUBSTR("TNAME_MYMODEL"."SOMEFIELD") IS NULL
DatabaseError: ORA-06502: PL/SQL: numeric or value error: character string
buffer too small
ORA-06512: at line 1
}}}
--
Comment:
Thanks for this ticket, however it works for me. I cannot reproduce
`ORA-06502` on Oracle 19c.
Please reopen the ticket if you can debug your issue and provide a small
sample project that reproduces the issue.
--
Ticket URL: <https://code.djangoproject.com/ticket/34544#comment:4>
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 view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/01070187f0ed7097-a8e1734f-4676-4e12-bfce-3fa89ec28bcc-000000%40eu-central-1.amazonses.com.
