[jira] [Resolved] (IMPALA-11337) impala-shell can output the "Fetched X row(s)" line before the actual results

["Joe McDonnell (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-11337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joe McDonnell resolved IMPALA-11337.
------------------------------------
    Fix Version/s: Impala 4.2.0
       Resolution: Fixed

> impala-shell can output the "Fetched X row(s)" line before the actual results
> -----------------------------------------------------------------------------
>
>                 Key: IMPALA-11337
>                 URL: https://issues.apache.org/jira/browse/IMPALA-11337
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Clients
>    Affects Versions: Impala 4.2.0
>            Reporter: Joe McDonnell
>            Assignee: Joe McDonnell
>            Priority: Major
>             Fix For: Impala 4.2.0
>
>
> In some scenarios, we are seeing that the "Fetched X row(s)" message is output before the actual data:
> {noformat}
> Query: SELECT * FROM test_table ORDER BY id DESC
> Query submitted at: 2022-06-02 23:53:48 (Coordinator: https://coordinator:25000)
> Query progress can be monitored at: https://coordinator:25000/query_plan?query_id=9d47858d6659cb87:2ccbdcdf00000000
> Fetched 1 row(s) in 1.59s
> 0	john	10{noformat}
> The "Fetched X row(s)" message is going to stderr and the results are going to stdout, so this is not covered completely by the current tests. Nonetheless, we should expect the "Fetched X row(s)" output to happen after the results data is written.
> We should add tests for this case and make sure that stdout is flushed prior to writing the "Fetched X row(s)" output.



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