[core] Fix merge schemas equal method issue

[harveyyue]

Purpose

Linked issue: close #xxx
No

Tests

API and Format

Documentation

[wwj6591812]

+1

[JingsongLi]

I remember this is not an issue. @harveyyue Can you find the exact case?

[harveyyue]

I remember this is not an issue. @harveyyue Can you find the exact case?

Using spark format paimon to write upstream data will generate a new schema-xxx since have no schema changes
dataset.format("paimon").options(options);

[JingsongLi]

I remember this is not an issue. @harveyyue Can you find the exact case?

Using spark format paimon to write upstream data will generate a new schema-xxx since have no schema changes dataset.format("paimon").options(options);

@harveyyue Can you add a test case?

[harveyyue]

I remember this is not an issue. @harveyyue Can you find the exact case?

Using spark format paimon to write upstream data will generate a new schema-xxx since have no schema changes dataset.format("paimon").options(options);

@harveyyue Can you add a test case?

Done
We did some code changes to reselect column according table schema, the unexecpted field orders will trigger the == compare method from row type.

[JingsongLi]

+1