[core][spark] Fix create external table with schema evolution

[Zouxxyy]

Purpose

Fix create external table with schema evolution, e.g.

CREATE TABLE t1 (a INT, b INT, c INT) USING paimon;
ALTER TABLE t1 DROP COLUMN b;
ALTER TABLE t1 ADD COLUMN b INT;

-- ok
CREATE TABLE t2 (a INT, c INT, b INT) USING paimon LOCATION '/path/to/t1';

-- error
CREATE TABLE t2 (a INT, b INT, c INT) USING paimon LOCATION '/path/to/t1';

Tests

API and Format

Documentation

[JingsongLi]

+1