felixYyu commented on issue #4615:
URL: https://github.com/apache/iceberg/issues/4615#issuecomment-1110671661
> ALTER TABLE hadoop_prod.default.test_evolution7 SET TBLPROPERTIES
('comment' = 'A table comment.')
> ALTER TABLE hadoop_prod.default.test_evolution7 ALTER COLUMN point COMMENT
"new comment"
the syntax of Spark sql can work @kbendick . show DDL detail following:
```
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|createtab_stmt
|
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|CREATE TABLE hadoop_prod.default.test_evolution7 (\n `col0` BIGINT,\n
`col10` BIGINT,\n `point` STRUCT<`x`: DOUBLE, `y`: DOUBLE> COMMENT 'new
comment')\nUSING iceberg\nCOMMENT 'A table comment.'\nLOCATION
'file:///D:/lake-iceberg/warehouse/default/test_evolution7'\nTBLPROPERTIES(\n
'current-snapshot-id' = 'none',\n 'format' = 'iceberg/parquet',\n
'format-version' = '1',\n 'write.delete.mode' = 'merge-on-read')\n|
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
```
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