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https://issues.apache.org/jira/browse/SPARK-13662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15248241#comment-15248241
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Vijay Parmar commented on SPARK-13662:
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Thank you Evan!
If possible then you please guide me to some study material which you think
might be helpful in this regard.
Thanks
Vijay
> [SQL][Hive] Have SHOW TABLES return additional fields from Hive MetaStore
> --------------------------------------------------------------------------
>
> Key: SPARK-13662
> URL: https://issues.apache.org/jira/browse/SPARK-13662
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.5.2, 1.6.0
> Environment: All
> Reporter: Evan Chan
>
> Currently, the SHOW TABLES command in Spark's Hive ThriftServer, or
> equivalently the HiveContext.tables method, returns a DataFrame with only two
> columns: the name of the table and whether it is temporary. It would be
> really nice to add support to return some extra information, such as:
> - Whether this table is Spark-only or a native Hive table
> - If spark-only, the name of the data source
> - potentially other properties
> The first two is really useful for BI environments connecting to multiple
> data sources and that work with both Hive and Spark.
> Some thoughts:
> - The SQL/HiveContext Catalog API might need to be expanded to return
> something like a TableEntry, rather than just a tuple of (name, temporary).
> - I believe there is a Hive Catalog/client API to get information about each
> table. I suppose one concern would be the speed of using this API. Perhaps
> there are other APis that can get this info faster.
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