SchemaMismatchError: Schema error: Cannot merge types long and double

[Amar1404]

Environment

**Delta-rs version **: 0.17.2

**Binding **: Python

Environment:

• Cloud provider: AWS
• OS:
• Other:

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Bug

What happened:
Why doing write_to_deltalake(path,df,schema='merge', mode='append',engine='rust', partition_by=['date']) the df is not able to convert the schema of the table from long to double

What you expected to happen:
To Convert the evolution of schema
How to reproduce it:
Create a table with existing field contain int
change the field value to double
More details:

[ion-elgreco]

@ion-elgreco this isn't a bug, we don't allow type expansion yet.

[ihawn]

Is this on the roadmap?