BUG: Raise MergeError when suffixes result in duplicate column names … #23317

Job	Run time
Linux-Musl	14m 36s
Linux-32-bit	14m 34s
python-dev	0s
python-freethreading	14m 46s
windows-latest actions-313.yaml	14m 44s
Pyodide build	14m 46s
macos-13 actions-311.yaml	14m 53s
macos-13 actions-313.yaml	14m 50s
macos-14 actions-311.yaml	14m 52s
macos-14 actions-312.yaml	14m 51s
macos-14 actions-313.yaml	14m 48s
macos-13 actions-312.yaml	14m 53s
windows-latest actions-310.yaml	14m 39s
macos-13 actions-310.yaml	14m 51s
macos-14 actions-310.yaml	14m 50s
windows-latest actions-312.yaml	14m 38s
ubuntu-22.04 actions-310.yaml	19m 16s
windows-latest actions-311.yaml	14m 39s
Future infer strings (without pyarrow)	19m 32s
ubuntu-24.04-arm actions-312.yaml	19m 30s
ubuntu-22.04 actions-311.yaml	19m 32s
Pypy	1m 15s
Minimum Versions	14m 49s
Future infer strings	19m 16s
ubuntu-22.04 actions-312.yaml	19m 15s
Numpy Dev	14m 48s
ubuntu-22.04 actions-313.yaml	19m 11s
Downstream Compat	5m 33s
Pyarrow Nightly	14m 48s
ubuntu-24.04-arm actions-310.yaml	19m 32s
Locale: it_IT	14m 49s
ubuntu-24.04-arm actions-313.yaml	19m 32s
Locale: zh_CN	14m 48s
ubuntu-24.04-arm actions-311.yaml	19m 31s
	8h 31m 7s

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