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FIX: fixed error when subtracting DateTime fields (#368) #472

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FIX: fixed error when subtracting DateTime fields (#368) #472

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5a50494
FIX: fixed error when subtracting DateTime fields (#368)
Aug 16, 2025
24f4090
Merge branch 'dev' into issue-368
bewithgaurav Aug 18, 2025
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4 changes: 2 additions & 2 deletions mssql/operations.py
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Original file line number Diff line number Diff line change
Expand Up @@ -556,12 +556,12 @@ def subtract_temporals(self, internal_type, lhs, rhs):
rhs_sql, rhs_params = rhs
if internal_type == 'DateField':
sql = "CAST(DATEDIFF(day, %(rhs)s, %(lhs)s) AS bigint) * 86400 * 1000000"
params = rhs_params + lhs_params
params = (*rhs_params, *lhs_params)
else:
SECOND = "DATEDIFF(second, %(rhs)s, %(lhs)s)"
MICROSECOND = "DATEPART(microsecond, %(lhs)s) - DATEPART(microsecond, %(rhs)s)"
sql = "CAST({} AS bigint) * 1000000 + {}".format(SECOND, MICROSECOND)
params = rhs_params + lhs_params * 2 + rhs_params
params = tuple(rhs_params) + tuple(lhs_params) * 2 + tuple(rhs_params)
return sql % {'lhs': lhs_sql, 'rhs': rhs_sql}, params

def tablespace_sql(self, tablespace, inline=False):
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