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https://issues.apache.org/jira/browse/HIVE-23139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17076168#comment-17076168
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László Bodor commented on HIVE-23139:
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+1
as you need to upload a new patch because of testExecuteImmediate anyway,
please put a comment before maskIfStartsWith noting that string operations are
much faster, otherwise somebody will try to refactor it back to regexes sooner
or later (e.g. because 1 regex array looks better than more arrays...however,
we care performance more)
> Improve q test result masking
> -----------------------------
>
> Key: HIVE-23139
> URL: https://issues.apache.org/jira/browse/HIVE-23139
> Project: Hive
> Issue Type: Sub-task
> Components: Hive
> Reporter: Miklos Gergely
> Assignee: Miklos Gergely
> Priority: Major
> Attachments: HIVE-23139.01.patch
>
>
> Q Test result masking can take a long time, in extreme cases up to 5 times as
> much as the test itself, because it is inefficient. Use contains, startsWith
> instead of patterns for masking lines containing or starting with specified
> strings.
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