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From "Phabricator (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2822) Add JSON output to the hive ddl commands
Date Sat, 24 Mar 2012 18:16:27 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HIVE-2822:
------------------------------

    Attachment: HIVE-2822.D2475.1.patch

ctdean requested code review of "HIVE-2822 [jira] Add JSON output to the hive ddl commands".
Reviewers: JIRA

  JSON output for DDL commands

  By setting the variable hive.format=json then ddl commands will
  produce json output suitable for client side parsing.  For example, to
  list all the databases one might get:

      {
        "databases": [
          "default"
        ]
      }

  The goal is to have an option to produce JSON output of the DDL commands that is easily
machine parseable.

  For example, "desc my_table" currently gives

      id    bigint
      user  string

  and we want to allow a json output:

      {
        "columns": [
          {"name": "id", "type": "bigint"},
          {"name": "user", "type": "string"}
        ]
      }

TEST PLAN
  Run the provided unit tests

REVISION DETAIL
  https://reviews.facebook.net/D2475

AFFECTED FILES
  ql/src/java/org/apache/hadoop/hive/ql/exec/DDLTask.java
  ql/src/java/org/apache/hadoop/hive/ql/metadata/JsonMetaDataFormatter.java
  ql/src/java/org/apache/hadoop/hive/ql/metadata/MapBuilder.java
  ql/src/java/org/apache/hadoop/hive/ql/metadata/MetaDataFormatter.java
  ql/src/java/org/apache/hadoop/hive/ql/metadata/TextMetaDataFormatter.java
  ql/src/test/queries/clientpositive/describe_database_json.q
  ql/src/test/queries/clientpositive/describe_table_json.q
  ql/src/test/queries/clientpositive/misc_json.q
  ql/src/test/queries/clientpositive/partitions_json.q
  ql/src/test/results/clientpositive/describe_database_json.q.out
  ql/src/test/results/clientpositive/describe_table_json.q.out
  ql/src/test/results/clientpositive/misc_json.q.out
  ql/src/test/results/clientpositive/partitions_json.q.out

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> Add JSON output to the hive ddl commands
> ----------------------------------------
>
>                 Key: HIVE-2822
>                 URL: https://issues.apache.org/jira/browse/HIVE-2822
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Chris Dean
>         Attachments: HIVE-2822.03-branch0-8.patch, HIVE-2822.03.patch, HIVE-2822.03b.patch,
HIVE-2822.04-branch-08.patch, HIVE-2822.05-branch0-8-1.patch, HIVE-2822.05-branch0-8.patch,
HIVE-2822.05.patch, HIVE-2822.D2475.1.patch, hive-json-01-branch0-8.patch, hive-json-01.patch,
hive-json-02-branch0-8.patch, hive-json-02.patch
>
>
> The goal is to have an option to produce JSON output of the DDL commands that is easily
machine parseable.
> For example, "desc my_table" currently gives
> {noformat}
>     id    bigint
>     user  string
> {noformat} 
> and we want to allow a json output:
> {noformat}
>     {
>       "columns": [
>         {"name": "id", "type": "bigint"},
>         {"name": "user", "type": "string"}
>       ]
>     }
> {noformat} 

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