felixYyu commented on issue #4603:
URL: https://github.com/apache/iceberg/issues/4603#issuecomment-1105866438
thanks @kbendick for detail description. I just want not to write multiple
spark sql commands during single step debugging.
like the following is ok
```
spark.sql(
s"""
|
|/*INSERT INTO hadoop_prod.default.test_evolution5 VALUES (1, 11,
21)*/
|--ALTER TABLE hadoop_prod.default.test_evolution5 ADD PARTITION
FIELD col2
|INSERT INTO hadoop_prod.default.test_evolution5 VALUES (2, 12, 22)
|
|--ALTER TABLE hadoop_prod.default.test_evolution5 DROP PARTITION
FIELD col2
|--INSERT INTO hadoop_prod.default.test_evolution5 VALUES (3, 13,
23)
|--ALTER TABLE hadoop_prod.default.test_evolution5 DROP COLUMN col2
|""".stripMargin)
```
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