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Posted to issues-all@impala.apache.org by "Sahil Takiar (Jira)" <ji...@apache.org> on 2020/06/10 17:53:00 UTC
[jira] [Resolved] (IMPALA-9818) Add fetch size as option to impala
shell
[ https://issues.apache.org/jira/browse/IMPALA-9818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sahil Takiar resolved IMPALA-9818.
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Fix Version/s: Impala 4.0
Resolution: Fixed
> Add fetch size as option to impala shell
> ----------------------------------------
>
> Key: IMPALA-9818
> URL: https://issues.apache.org/jira/browse/IMPALA-9818
> Project: IMPALA
> Issue Type: Improvement
> Components: Clients
> Reporter: Sahil Takiar
> Assignee: Sahil Takiar
> Priority: Major
> Fix For: Impala 4.0
>
>
> The impala shell should have an option to control the fetch size (e.g. the number of rows fetched at a time). Currently the value is hard-coded to 1024. Other clients (e.g. JDBC) have similar options (e.g. Statement#setFetchSize).
> When result spooling is enabled, setting a higher fetch size can improve performance for clients with a high RTT to/from the Impala coordinator.
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