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https://issues.apache.org/jira/browse/IMPALA-2748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-2748.
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Resolution: Later
This isn't possible for Parquet and ORC for the reason Juan mentioned. It is
possible for text files, but then that can be determined based on the file
extension anyway.
> Show compression codec in 'SHOW FILES' statement
> ------------------------------------------------
>
> Key: IMPALA-2748
> URL: https://issues.apache.org/jira/browse/IMPALA-2748
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Affects Versions: Impala 2.2.4
> Reporter: Dimitris Tsirogiannis
> Priority: Minor
> Labels: catalog-server, usability
>
> Currently, the only way a user has in knowing the compression codec of table
> files is to look at the profile of a query that accesses that table. It would
> be nice to show the compression code of each file in the 'show files'
> statement.
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