GitHub user Smotrov closed a discussion: Infer schema for NDJSON

I have a data in NDJSON format. 
The thing is some fields there are optional and populated when needed. 
As I understand, DF is using the first row only by default to infer schema. 
Than when it see that certain fields are missing in som of the next rows it 
shows an error `Fail to merge schema field 'my_fieldname' because the from 
data_type ... does not equal ...`. 

So is it possible to specify N rows which should be used to infer schema?

GitHub link: https://github.com/apache/datafusion/discussions/10900

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