GitHub user liancheng opened a pull request: https://github.com/apache/spark/pull/12844
[SPARK-14127][SQL] Native "DESC [EXTENDED | FORMATTED] <table>" DDL command ## What changes were proposed in this pull request? This PR implements native `DESC [EXTENDED | FORMATTED] <table>` DDL command. Sample output: ``` scala> spark.sql("desc extended src").show(100, truncate = false) +----------------------------+---------------------------------+-------+ |col_name |data_type |comment| +----------------------------+---------------------------------+-------+ |key |int | | |value |string | | | | | | |# Detailed Table Information|CatalogTable(`default`.`src`, ...| | +----------------------------+---------------------------------+-------+ scala> spark.sql("desc formatted src").show(100, truncate = false) +----------------------------+----------------------------------------------------------+-------+ |col_name |data_type |comment| +----------------------------+----------------------------------------------------------+-------+ |key |int | | |value |string | | | | | | |# Detailed Table Information| | | |Database: |default | | |Owner: |lian | | |Create Time: |Mon Jan 04 17:06:00 CST 2016 | | |Last Access Time: |Thu Jan 01 08:00:00 CST 1970 | | |Location: |hdfs://localhost:9000/user/hive/warehouse_hive121/src | | |Table Type: |MANAGED | | |Table Parameters: | | | | transient_lastDdlTime |1451898360 | | | | | | |# Storage Information | | | |SerDe Library: |org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe | | |InputFormat: |org.apache.hadoop.mapred.TextInputFormat | | |OutputFormat: |org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat| | |Num Buckets: |-1 | | |Bucket Columns: |[] | | |Sort Columns: |[] | | |Storage Desc Parameters: | | | | serialization.format |1 | | +----------------------------+----------------------------------------------------------+-------+ ``` ## How was this patch tested? A test case is added to `HiveDDLSuite` to check command output. You can merge this pull request into a Git repository by running: $ git pull https://github.com/liancheng/spark spark-14127-desc-table Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/12844.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #12844 ---- commit 89e0aea04bdeffaa69be0c19f10860d12af90953 Author: Cheng Lian <l...@databricks.com> Date: 2016-05-02T17:07:32Z Implements native 'DESC TABE' DDL command commit 718da25b489ef56e2b1092484bd6fbcdf2a547ed Author: Cheng Lian <l...@databricks.com> Date: 2016-05-02T17:39:24Z Test case ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org