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Refs #13312 -- Removed unnecessary IF wrapping in nulls_last handling on MySQL. 

ISNULL function already returns 0 and 1 on MySQL.
This commit is contained in:
Simon Charette 2019-10-31 15:17:04 -04:00 committed by Mariusz Felisiak
parent a9bd01d363
commit a699595fce
1 changed files with 1 additions and 1 deletions
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2
django/db/models/expressions.py
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@ -1156,7 +1156,7 @@ class OrderBy(BaseExpression):
def as_mysql(self, compiler, connection):
template = None
if self.nulls_last:
template = 'IF(ISNULL(%(expression)s),1,0), %(expression)s %(ordering)s '
template = 'ISNULL(%(expression)s), %(expression)s %(ordering)s '
elif self.nulls_first:
template = 'IF(ISNULL(%(expression)s),0,1), %(expression)s %(ordering)s '
return self.as_sql(compiler, connection, template=template)