Losing Data Format when saving Delta Table

Question

When I save a spark dataframe to a delta table in databricks, all my data formats get lost (i.e. it all turns into string).
The command for saving I use is: spark_df.write.format("delta").saveAsTable("database.tabelname")

Is there a way to prevent that?

Answer 1

Hello @Anonymous ,

Thanks for the question and using MS Q&A platform.

As per the repro from our end, we are not loosing any data format or changes in the output.

Here is the dataframe before writing to delta table:

Here is the dataframe after writing to delta table.

Hope this will help. Please let us know if any further queries.

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