[jira] [Updated] (HIVE-18342) Remove LinkedList from HiveAlterHandler.java

["Sahil Takiar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-18342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sahil Takiar updated HIVE-18342:
--------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0
           Status: Resolved  (was: Patch Available)

Pushed to master, thanks Beluga Behr for the contribution!

> Remove LinkedList from HiveAlterHandler.java
> --------------------------------------------
>
>                 Key: HIVE-18342
>                 URL: https://issues.apache.org/jira/browse/HIVE-18342
>             Project: Hive
>          Issue Type: Improvement
>          Components: HiveServer2
>    Affects Versions: 3.0.0
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Trivial
>             Fix For: 3.0.0
>
>         Attachments: HIVE-18342.1.patch
>
>
> Remove {{LinkedList}} in favor of {{ArrayList}} for class {{org.apache.hadoop.hive.metastore.HiveAlterHandler}}.
> {quote}
> The size, isEmpty, get, set, iterator, and listIterator operations run in constant time. The add operation runs in amortized constant time, that is, adding n elements requires O(n) time. All of the other operations run in linear time (roughly speaking). *The constant factor is low compared to that for the LinkedList implementation.*
> {quote}



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