Opened 5 years ago

Closed 5 years ago

Last modified 5 years ago

#29976 closed Uncategorized (invalid)

How to perform Group by on Union of two models

Reported by: Sandeep Owned by: nobody
Component: Database layer (models, ORM) Version: 2.1
Severity: Normal Keywords: Union and annotate(Count(''))
Cc: k.sandeep44@… Triage Stage: Unreviewed
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description (last modified by Tim Graham)

I have two models like this:

class Story(models.Model):
    name = models.TextField(db_column='NAME')  # Field name made lowercase.
    status = models.TextField(db_column='STATUS')  # Field name made lowercase.
	
class Bug(models.Model):
    name = models.TextField(db_column='NAME')  # Field name made lowercase.
    status = models.TextField(db_column='STATUS')  # Field name made lowercase.

I would like to get count of Unique status from above two tables

Query: Select new_table.status, Count(new_table.name) from (select status, name from Story Union select status, name from Bug) new_table group by new_table.status

Change History (3)

comment:1 by Carlton Gibson, 5 years ago

Severity: Release blocker → Normal

The Release Blocker status is for data loss bugs and regressions from previous versions of Django. As far as I can see this isn't that.

There's no bug report here. Please see TicketClosingReasons/UseSupportChannels for help.

comment:2 by Carlton Gibson, 5 years ago

Resolution: → invalid
Status: new → closed

comment:3 by Tim Graham, 5 years ago

Description: modified (diff)
Note: See TracTickets for help on using tickets.
Back to Top