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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/12/21 17:33:00 UTC
[jira] [Updated] (IMPALA-7287) Speed up printing of tab delimited
output in impala-shell
[ https://issues.apache.org/jira/browse/IMPALA-7287?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tim Armstrong updated IMPALA-7287:
----------------------------------
Component/s: Clients
> Speed up printing of tab delimited output in impala-shell
> ---------------------------------------------------------
>
> Key: IMPALA-7287
> URL: https://issues.apache.org/jira/browse/IMPALA-7287
> Project: IMPALA
> Issue Type: Improvement
> Components: Clients
> Reporter: Csaba Ringhofer
> Assignee: Nghia Le
> Priority: Minor
>
> Beeswax returns result rows as strings where the columns are separated by tab characters. ImpalaClient.fetch() splits the rows and printing functions join them again. If the output_delimiter is \t, and the row doesn't contain any special characters, then the result is exactly the same string that was fetched. As \t is the default delimiter, I think that it would be useful to create a "fast path" for this special case.
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