I am currently trying to (again?) write a database backend for Informix. So far so good, but I am running into one major issue: All of Django's other databases support changing null/default properties via "ALTER TABLE ALTER col DROP NULL/DEFAULT" or what not. In Informix I can only use "ALTER TABLE MODIFY" and rewrite the column completely [1]. This means that I would need more information in [2] (which I initially tried in https://github.com/django/django/commit/2b3a9414570af623853ca0f819c7d77d0511f22c before noticing that I need to repeat the whole column declaration). I am looking into options to extend _alter_field [3] in a way that I can either add a database feature that says something along the line of: "field property changes need full remake" and then call into _alter_column_type_sql directly, or at least factor the (for me) annoying parts out into _alter_column_properties.
Which of the two would you prefer? Thanks, Florian [1] https://www.ibm.com/support/knowledgecenter/en/SSGU8G_12.1.0/com.ibm.sqls.doc/ids_sqs_0290.htm [2] https://github.com/django/django/blob/837259a63ff03fbc0ca2bc2999a6fbc8c6c40bcc/django/db/backends/base/schema.py#L39-L42 [3] https://github.com/django/django/blob/837259a63ff03fbc0ca2bc2999a6fbc8c6c40bcc/django/db/backends/base/schema.py#L581-L640 -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" 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]. Visit this group at https://groups.google.com/group/django-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/692f0912-92a9-4c6f-82ad-5a83bf559bf9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
