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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/06/05 06:55:04 UTC

[jira] [Assigned] (SPARK-20954) DESCRIBE showing 1 extra row of "| # col_name | data_type | comment |"

     [ https://issues.apache.org/jira/browse/SPARK-20954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-20954:
------------------------------------

    Assignee:     (was: Apache Spark)

> DESCRIBE showing 1 extra row of "| # col_name  | data_type  | comment  |"
> -------------------------------------------------------------------------
>
>                 Key: SPARK-20954
>                 URL: https://issues.apache.org/jira/browse/SPARK-20954
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Garros Chan
>
> I am trying to do DESCRIBE on a table but seeing 1 extra row being auto-added to the result. You can see there is this 1 extra row with "| # col_name  | data_type  | comment  |" ; however, select and select count(*) only shows 1 row.
> I searched online a long time and do not find any useful information.
> Is this a bug?
> hdp106m2:/usr/hdp/2.5.0.2-3/spark2 # ./bin/beeline
> Beeline version 1.2.1.spark2 by Apache Hive
> [INFO] Unable to bind key for unsupported operation: backward-delete-word
> [INFO] Unable to bind key for unsupported operation: backward-delete-word
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> beeline> !connect jdbc:hive2://localhost:10016
> Connecting to jdbc:hive2://localhost:10016
> Enter username for jdbc:hive2://localhost:10016: hive
> Enter password for jdbc:hive2://localhost:10016: ****
> 17/06/01 14:13:04 INFO Utils: Supplied authorities: localhost:10016
> 17/06/01 14:13:04 INFO Utils: Resolved authority: localhost:10016
> 17/06/01 14:13:04 INFO HiveConnection: Will try to open client transport with JDBC Uri: jdbc:hive2://localhost:10016
> Connected to: Spark SQL (version 2.2.1-SNAPSHOT)
> Driver: Hive JDBC (version 1.2.1.spark2)
> Transaction isolation: TRANSACTION_REPEATABLE_READ
> 0: jdbc:hive2://localhost:10016> describe garros.hivefloat;
> +-------------+------------+----------+--+
> |  col_name   | data_type  | comment  |
> +-------------+------------+----------+--+
> | # col_name  | data_type  | comment  |
> | c1          | float      | NULL     |
> +-------------+------------+----------+--+
> 2 rows selected (0.396 seconds)
> 0: jdbc:hive2://localhost:10016> select * from garros.hivefloat;
> +---------------------+--+
> |         c1          |
> +---------------------+--+
> | 123.99800109863281  |
> +---------------------+--+
> 1 row selected (0.319 seconds)
> 0: jdbc:hive2://localhost:10016> select count(*) from garros.hivefloat;
> +-----------+--+
> | count(1)  |
> +-----------+--+
> | 1         |
> +-----------+--+
> 1 row selected (0.783 seconds)
> 0: jdbc:hive2://localhost:10016> describe formatted garros.hiveint;
> +-------------------------------+-------------------------------------------------------------+----------+--+
> |           col_name            |                          data_type                          | comment  |
> +-------------------------------+-------------------------------------------------------------+----------+--+
> | # col_name                    | data_type                                                   | comment  |
> | c1                            | int                                                         | NULL     |
> |                               |                                                             |          |
> | # Detailed Table Information  |                                                             |          |
> | Database                      | garros                                                      |          |
> | Table                         | hiveint                                                     |          |
> | Owner                         | root                                                        |          |
> | Created                       | Thu Feb 09 17:40:36 EST 2017                                |          |
> | Last Access                   | Wed Dec 31 19:00:00 EST 1969                                |          |
> | Type                          | MANAGED                                                     |          |
> | Provider                      | hive                                                        |          |
> | Properties                    | [serialization.format=1]                                    |          |
> | Location                      | hdfs://HDP106/apps/hive/warehouse/garros.db/hiveint         |          |
> | Serde Library                 | org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe          |          |
> | InputFormat                   | org.apache.hadoop.mapred.TextInputFormat                    |          |
> | OutputFormat                  | org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat  |          |
> | Partition Provider            | Catalog                                                     |          |
> +-------------------------------+-------------------------------------------------------------+----------+--+
> 17 rows selected (0.304 seconds)



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