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Posted to issues@hive.apache.org by "Marton Bod (Jira)" <ji...@apache.org> on 2020/04/24 10:46:00 UTC

[jira] [Assigned] (HIVE-23297) Precompile statements where needed across TxnHandler

     [ https://issues.apache.org/jira/browse/HIVE-23297?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marton Bod reassigned HIVE-23297:
---------------------------------


> Precompile statements where needed across TxnHandler
> ----------------------------------------------------
>
>                 Key: HIVE-23297
>                 URL: https://issues.apache.org/jira/browse/HIVE-23297
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Marton Bod
>            Assignee: Marton Bod
>            Priority: Major
>
> There are multiple places in TxnHandler that could benefit from pre-compiling sql queries using prepared statements. Some queries are complex in structure (e.g. checkLock) and we use string concats to recreate them every time the query is to run, in addition to re-parsing the query structure as well.



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