[jira] [Work started] (IMPALA-10012) ds_hll_sketch() results ascii codec decoding error

["Adam Tamas (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-10012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on IMPALA-10012 started by Adam Tamas.
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> ds_hll_sketch() results ascii codec decoding error
> --------------------------------------------------
>
>                 Key: IMPALA-10012
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10012
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>            Reporter: Gabor Kaszab
>            Assignee: Adam Tamas
>            Priority: Major
>
> {code:java}
> select ds_hll_sketch(l_orderkey) from tpch_parquet.lineitem;
> Unknown Exception : 'ascii' codec can't decode byte 0x86 in position 20: ordinal not in range(128)
> Traceback (most recent call last):
>   File "/home/gaborkaszab/shadow/Impala-upstream/shell/impala_shell.py", line 1183, in _execute_stmt
>     for rows in rows_fetched:
>   File "/home/gaborkaszab/shadow/Impala-upstream/shell/impala_client.py", line 1098, in fetch
>     yield [row.split('\t') for row in result.data]
> UnicodeDecodeError: 'ascii' codec can't decode byte 0x86 in position 20: ordinal not in range(128)
> [Not connected] >
> {code}
> Even though there is no point of calling ds_hll_sketch() on its own, we should still make this foolproof and prevent Impala from crashing.



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