Github user mgaido91 commented on the issue:
https://github.com/apache/spark/pull/21736
@MaxGekk the main reason is to avoid it to be serialized to the executors,
so we use the `@transient`. The main reason for using lazy is to get the value
only if needed. Probably it is not a big deal to get rid of lazy.
@cloud-fan thanks, then I'll create a JIRA. Thanks.
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