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https://issues.apache.org/jira/browse/HIVE-20721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16646059#comment-16646059
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Pedro commented on HIVE-20721:
------------------------------
Hi [~xuefuz]:
First of all thanks for your response.
Yes, I've tried desc table too, the result is the same:
> desc table_name
||col_name||data_type||comment||
|some_column1|bigint|from deserializer|
|some_column2|string|from deserializer|
|some_column3|string|from deserializer|
|...|...|...|
If I use _desc extended table_name_, in "Detailed Table Information" I see the
json with the correct comments, but the comments in the rows with the table
columns name only show "from deserializer", as it does with _desc table_name_.
> Describe table sometimes shows "from deserializer" for column comments
> ----------------------------------------------------------------------
>
> Key: HIVE-20721
> URL: https://issues.apache.org/jira/browse/HIVE-20721
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Affects Versions: 1.1.0
> Reporter: Pedro
> Priority: Major
>
> When we want to see the comments made in the hive tables, it only shows "from
> deserializer"
>
> For example
> > show create table table_name
> CREATE EXTERNAL TABLE `table_name`(
> `some_column1` bigint COMMENT 'from deserializer',
> `some_column2` string COMMENT 'from deserializer',
> `some_column3` string COMMENT 'from deserializer',
> [...]
> PARTITIONED BY (
> `dt` string)
> ROW FORMAT SERDE
> 'org.apache.hive.hcatalog.data.JsonSerDe'
> STORED AS INPUTFORMAT
> 'org.apache.hadoop.mapred.TextInputFormat'
> OUTPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
> LOCATION
> 'hdfs://location/table_name'
> TBLPROPERTIES (
> 'json.schema.url'='/location/json/table_name.json',
> 'transient_lastDdlTime'='1525858710')
>
> I saw it was resolved in HIVE-6681 but the fixed version was 0.13.0. I'm on
> 1.1.0 and apparently I have the same issue.
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