[spark] Fix can not set bucket number in HiveMigrator

[xuzifu666]

Fix can not set bucket number in HiveMigrator，currently in MigrateTableProcedure can only set bucket = -1, user cannot set bucekts，the pr is aim to fix it.

Linked issue: close #xxx

Tests

API and Format

Documentation

[JingsongLi]

Hi @xuzifu666 , why do you want to set bucket number for this case?

[xuzifu666]

Hi @xuzifu666 , why do you want to set bucket number for this case?
Thanks for your attention. Spark load to paimon table is more fast with setting buckets, user can set bucket number according to the total data size.So in my option give user a way to set bucket number is a better way.If my view is wrong please correct me anytime😃@JingsongLi

[JingsongLi]

@xuzifu666

Spark load to paimon table is more fast with setting buckets

What is this come from? Do you have some reproduce steps?

[xuzifu666]

@xuzifu666

Spark load to paimon table is more fast with setting buckets

What is this come from? Do you have some reproduce steps?
This is in our test spark data to paimon,if bucket is -1,would had a bucket assgine, so user would set bucket number avoid bucket assgine, mainly in the scene.@JingsongLi

[xuzifu666]

Keep the default is better，so close the pr first