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Code Issues 27 Releases Wiki Activity

[1.8.x] Removed query.alias_diff()

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This function is unused since 6fe2b001db

Backport of f79ce63fdb from master
This commit is contained in:
Tim Graham 2015-02-01 20:18:15 -05:00
parent 6d0538bd8c
commit 3cd8f51f21
1 changed files with 0 additions and 11 deletions
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django/db/models/sql/query.py
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@ -2050,17 +2050,6 @@ def is_reverse_o2o(field):
return not hasattr(field, 'rel') and field.field.unique
def alias_diff(refcounts_before, refcounts_after):
"""
Given the before and after copies of refcounts works out which aliases
have been added to the after copy.
"""
# Use -1 as default value so that any join that is created, then trimmed
# is seen as added.
return set(t for t in refcounts_after
if refcounts_after[t] > refcounts_before.get(t, -1))
class JoinPromoter(object):
"""
A class to abstract away join promotion problems for complex filter