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From "Dongjoon Hyun (Jira)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-28930) Spark DESC FORMATTED TABLENAME information display issues
Date Fri, 30 Aug 2019 17:09:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-28930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dongjoon Hyun updated SPARK-28930:
----------------------------------
    Component/s:     (was: Spark Shell)

> Spark DESC FORMATTED TABLENAME information display issues
> ---------------------------------------------------------
>
>                 Key: SPARK-28930
>                 URL: https://issues.apache.org/jira/browse/SPARK-28930
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.4.3
>            Reporter: jobit mathew
>            Priority: Minor
>
> Spark DESC FORMATTED TABLENAME information display issues.Showing incorrect *Last Access
time and* feeling some information displays can make it better.
> Test steps:
>  1. Open spark sql
>  2. Create table with partition
>  CREATE EXTERNAL TABLE IF NOT EXISTS employees_info_extended ( id INT, name STRING, usd_flag
STRING, salary DOUBLE, deductions MAP<STRING, DOUBLE>, address STRING ) PARTITIONED
BY (entrytime STRING) STORED AS TEXTFILE location 'hdfs://hacluster/user/sparkhive/warehouse';
>  3. from spark sql check the table description
>  desc formatted tablename;
>  4. From scala shell check the table description
>  sql("desc formatted tablename").show()
> *Issue1:*
>  If there is no comment for spark scala shell shows *"null" in small letters* but all
other places Hive beeline/Spark beeline/Spark SQL it is showing in *CAPITAL "NULL*". Better
to show same in all places.
>  
> {code}
> *scala>* sql("desc formatted employees_info_extended").show(false);
>  +-----------------------------+---------------------------++-------
> |col_name|data_type|*comment*|
> +-----------------------------+---------------------------++-------
> |id|int|*null*|
> |name|string|*null*|
> |usd_flag|string|*null*|
> |salary|double|*null*|
> |deductions|map<string,double>|*null*|
> |address|string|null|
> |entrytime|string|null|
> | # Partition Information| | |
> | # col_name|data_type|comment|
> |entrytime|string|null|
> | | | |
> | # Detailed Table Information| | |
> |Database|sparkdb__| |
> |Table|employees_info_extended| |
> |Owner|root| |
> *|Created Time |Tue Aug 20 13:42:06 CST 2019| |*
>  *|Last Access |Thu Jan 01 08:00:00 CST 1970| |*
> |Created By|Spark 2.4.3| |
> |Type|EXTERNAL| |
> |Provider|hive| |
> +-----------------------------+---------------------------++-------
>  only showing top 20 rows
> *scala>*
> {code}
> *Issue 2:*
>  Spark SQL "desc formatted tablename" is not showing the header [# col_name,data_type,comment|#col_name,data_type,comment]
in the top of the query result.But header is showing on top of partition description. For
Better understanding show the header on Top of the query result.
> {code}
> *spark-sql>* desc formatted employees_info_extended1;
>  id int *NULL*
>  name string *NULL*
>  usd_flag string NULL
>  salary double NULL
>  deductions map<string,double> NULL
>  address string NULL
>  entrytime string NULL
>  * 
>  ## Partition Information*
>  ## col_name data_type comment*
>  entrytime string *NULL*
>  # Detailed Table Information
>  Database sparkdb__
>  Table employees_info_extended1
>  Owner spark
>  *Created Time Tue Aug 20 14:50:37 CST 2019*
>  *Last Access Thu Jan 01 08:00:00 CST 1970*
>  Created By Spark 2.3.2.0201
>  Type EXTERNAL
>  Provider hive
>  Table Properties [transient_lastDdlTime=1566286655]
>  Location hdfs://hacluster/user/sparkhive/warehouse
>  Serde Library org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
>  InputFormat org.apache.hadoop.mapred.TextInputFormat
>  OutputFormat org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
>  Storage Properties [serialization.format=1]
>  Partition Provider Catalog
>  Time taken: 0.477 seconds, Fetched 27 row(s)
>  *spark-sql>*
> {code}
>  
> *Issue 3:*
>  I created the table on Aug 20.So it is showing created time correct .*But Last access
time showing 1970 Jan 01*. It is not good to show Last access time earlier time than the created
time.Better to show the correct date and time else show UNKNOWN.
>  *[Created Time,Tue Aug 20 13:42:06 CST 2019,]*
>  *[Last Access,Thu Jan 01 08:00:00 CST 1970,]*



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