ALTER TABLE CHANGE COLUMN COMMENT doesn't work for external hive table

print(spark.sql("""
SHOW CREATE TABLE test.trends
""").collect()[0].createtab_stmt)

/// OUTPUT
CREATE EXTERNAL TABLE `test`.`trends`(`id` string COMMENT '', `metric` string COMMENT '', `amount` bigint COMMENT '')
COMMENT ''
PARTITIONED BY (`date` string COMMENT '')
ROW FORMAT SERDE 'org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe'
WITH SERDEPROPERTIES (
  'serialization.format' = '1'
)
STORED AS
  INPUTFORMAT 'org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat'
  OUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat'
LOCATION 's3://xxxxx/xxxxx/xxxx'
TBLPROPERTIES (
  'transient_lastDdlTime' = '1519729384',
  'last_modified_time' = '1519645652',
  'last_modified_by' = 'pavlo',
  'last_castor_run_ts' = '1513561658.0'
)


spark.sql("""
DESCRIBE test.trends
""").collect()

// OUTPUT
[Row(col_name='id', data_type='string', comment=''),
 Row(col_name='metric', data_type='string', comment=''),
 Row(col_name='amount', data_type='bigint', comment=''),
 Row(col_name='date', data_type='string', comment=''),
 Row(col_name='# Partition Information', data_type='', comment=''),
 Row(col_name='# col_name', data_type='data_type', comment='comment'),
 Row(col_name='date', data_type='string', comment='')]


spark.sql("""alter table test.trends change column id id string comment 'unique identifier'""")


spark.sql("""
DESCRIBE test.trends
""").collect()

// OUTPUT
[Row(col_name='id', data_type='string', comment=''), Row(col_name='metric', data_type='string', comment=''), Row(col_name='amount', data_type='bigint', comment=''), Row(col_name='date', data_type='string', comment=''), Row(col_name='# Partition Information', data_type='', comment=''), Row(col_name='# col_name', data_type='data_type', comment='comment'), Row(col_name='date', data_type='string', comment='')]