BUG: Raise MergeError when suffixes result in duplicate column names … #23321

Job	Run time
Linux-32-bit	6m 52s
python-dev	0s
Linux-Musl	6m 52s
macos-14 actions-310.yaml	7m 9s
macos-14 actions-311.yaml	7m 10s
windows-latest actions-311.yaml	6m 59s
macos-13 actions-311.yaml	7m 8s
macos-13 actions-310.yaml	7m 5s
macos-14 actions-312.yaml	7m 10s
macos-13 actions-312.yaml	7m 10s
macos-14 actions-313.yaml	7m 8s
windows-latest actions-312.yaml	6m 57s
windows-latest actions-310.yaml	7m 0s
windows-latest actions-313.yaml	7m 2s
macos-13 actions-313.yaml	7m 16s
python-freethreading	7m 4s
Pyodide build	7m 5s
Future infer strings	11m 49s
ubuntu-22.04 actions-312.yaml	11m 51s
ubuntu-22.04 actions-313.yaml	11m 51s
ubuntu-24.04-arm actions-312.yaml	11m 50s
ubuntu-22.04 actions-310.yaml	11m 51s
Numpy Dev	7m 5s
ubuntu-24.04-arm actions-313.yaml	11m 50s
Pyarrow Nightly	7m 7s
Downstream Compat	5m 41s
ubuntu-24.04-arm actions-310.yaml	11m 49s
Locale: zh_CN	7m 6s
ubuntu-24.04-arm actions-311.yaml	11m 50s
Minimum Versions	7m 9s
Pypy	1m 19s
Locale: it_IT	7m 8s
Future infer strings (without pyarrow)	11m 50s
ubuntu-22.04 actions-311.yaml	11m 49s
	4h 34m 2s

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