Brian Hulette created BEAM-11532:
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Summary: df.merge with identically-named `on` columns produces
duplicate output columns
Key: BEAM-11532
URL: https://issues.apache.org/jira/browse/BEAM-11532
Project: Beam
Issue Type: Bug
Components: sdk-py-core
Affects Versions: 2.26.0, 2.27.0
Reporter: Brian Hulette
Assignee: Brian Hulette
Fix For: 2.28.0
For example, when joining on 'a' in both df1 and df2:
{code}
Failed example:
df1.merge(df2, how='inner', on='a')
Expected:
0 foo 1 3
a b c
Got:
0 foo 1 foo 3
a_x b a_y c
{code}
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