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Posted to issues@spark.apache.org by "Dilip Biswal (JIRA)" <ji...@apache.org> on 2019/02/25 00:55:00 UTC
[jira] [Updated] (SPARK-26982) Enhance describe framework to
describe the output of a query
[ https://issues.apache.org/jira/browse/SPARK-26982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dilip Biswal updated SPARK-26982:
---------------------------------
Summary: Enhance describe framework to describe the output of a query (was: Enhance describe frame work to describe the output of a query)
> Enhance describe framework to describe the output of a query
> ------------------------------------------------------------
>
> Key: SPARK-26982
> URL: https://issues.apache.org/jira/browse/SPARK-26982
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Dilip Biswal
> Priority: Major
>
> Currently we can use `df.printSchema` to discover the schema information for a query. We should have a way to describe the output schema of a query using SQL interface.
>
> Example:
> DESCRIBE SELECT * FROM desc_table
> DESCRIBE QUERY SELECT * FROM desc_table
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