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https://issues.apache.org/jira/browse/HIVE-23492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17113810#comment-17113810
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Peter Vary commented on HIVE-23492:
-----------------------------------
+1
> Remove unnecessary FileSystem#exists calls from ql module
> ---------------------------------------------------------
>
> Key: HIVE-23492
> URL: https://issues.apache.org/jira/browse/HIVE-23492
> Project: Hive
> Issue Type: Improvement
> Reporter: Karen Coppage
> Assignee: Karen Coppage
> Priority: Major
> Attachments: HIVE-23492.01.patch, HIVE-23492.02.patch,
> HIVE-23492.03.patch, HIVE-23492.04.patch, HIVE-23492.05.patch
>
>
> Wherever there is an exists() call before open() or delete(), remove it and
> infer from the FileNotFoundException raised in open/delete that the file does
> not exist. Exists() just checks for a FileNotFoundException so it's a waste
> of time, especially on clunkier FSes
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