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crami
by • New Contributor III
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Databricks Dataframe: Merge exception for string column in delta table with change detectio enabled.

Hi,I am trying to append change data records into delta table using dataframe. However, I am encountering an issue while appending new records to existing data in delta table. The exception raised isCannot merge columns 'ColumnX' into 'ColumnX'Both n...

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SteveOstrowski
Databricks Employee
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Hi @crami, The "Cannot merge columns 'ColumnX' into 'ColumnX'" error you are seeing is caused by passing "delta.enableChangeDataFeed" as a write option on the DataFrame writer. Change Data Feed (CDF) is a table-level property, not a per-write option....

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