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  1. Spark
  2. SPARK-20954

DESCRIBE showing 1 extra row of "| # col_name | data_type | comment |"

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.2.0
    • 2.2.0
    • SQL
    • None

    Description

      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

      -------------------------------+

      1. 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

      --------------------------------------------------------------------------------------------------+

      1. col_name
      data_type comment
      c1 int NULL
           
      1. 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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              dongjoon Dongjoon Hyun
              garrosc Garros Chan
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                Created:
                Updated:
                Resolved: