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-rw-r--r--python/position.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/python/position.py b/python/position.py
index fff2782d..84b8d82d 100644
--- a/python/position.py
+++ b/python/position.py
@@ -91,7 +91,7 @@ def populate_cashflow_history(engine, session, workdate=None):
'91927RAD1 Mtge': 6.77}
for k, v in data.items():
if 'HIST_CASH_FLOW' in v:
- to_insert = v['HIST_CASH_FLOW'].merge(v['MTG_HIST_CPN'],
+ to_insert = v['HIST_CASH_FLOW'].merge(v['MTG_HIST_CPN'], how='left',
left_on='Payment Date',
right_on='Payment Date')
to_insert.rename(columns={'Coupon_y': 'coupon',