FYI: SPARK-30098 Use default datasource as provider for CREATE TABLE syntax

[Dongjoon Hyun]

Hi, All.

I want to share the following change to the community.

    SPARK-30098 Use default datasource as provider for CREATE TABLE syntax

This is merged today and now Spark's `CREATE TABLE` is using Spark's
default data sources instead of `hive` provider. This is a good and big
improvement for Apache Spark 3.0, but this might surprise someone. (Please
note that there is a fallback option for them.)

Thank you, Yi, Wenchen, Xiao.

Cheers,
Dongjoon.