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From "Marton Bod (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-22750) Consolidate LockType naming
Date Fri, 03 Apr 2020 13:07:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-22750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marton Bod updated HIVE-22750:
------------------------------
    Attachment: HIVE-22750.2.patch

> Consolidate LockType naming
> ---------------------------
>
>                 Key: HIVE-22750
>                 URL: https://issues.apache.org/jira/browse/HIVE-22750
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>            Reporter: Zoltan Chovan
>            Assignee: Marton Bod
>            Priority: Minor
>         Attachments: HIVE-22750.1.patch, HIVE-22750.2.patch
>
>
> Extend enum with string literal to remove unnecessary `id` to `char` casting for the
LockType:
> {code:java}
> switch (lockType) {
>             case EXCLUSIVE:
>               lockChar = LOCK_EXCLUSIVE;
>               break;
>             case SHARED_READ:
>               lockChar = LOCK_SHARED;
>               break;
>             case SHARED_WRITE:
>               lockChar = LOCK_SEMI_SHARED;
>               break;
>           }
> {code}
> Consolidate LockType naming in code and schema upgrade scripts:
> {code:java}
> CASE WHEN HL.`HL_LOCK_TYPE` = 'e' THEN 'exclusive' WHEN HL.`HL_LOCK_TYPE` = 'r' THEN
'shared' WHEN HL.`HL_LOCK_TYPE` = 'w' THEN *'semi-shared'* END AS LOCK_TYPE,
> {code}
> +*Lock types:*+
> EXCLUSIVE
>  EXCL_WRITE
>  SHARED_WRITE
>  SHARED_READ



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