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https://issues.apache.org/jira/browse/IMPALA-12652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17843055#comment-17843055
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Michael Smith commented on IMPALA-12652:
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We currently raise MAX_STATEMENT_LENGTH_BYTES as needed for the insertion.
IMPALA-13027 is a better long-term fix to look at.
Actually sticking to max=16MB would limit the size of files we can create to
16MB.
> Limit Length of Completed Queries Insert DML
> --------------------------------------------
>
> Key: IMPALA-12652
> URL: https://issues.apache.org/jira/browse/IMPALA-12652
> Project: IMPALA
> Issue Type: Improvement
> Components: be
> Reporter: Jason Fehr
> Assignee: Jason Fehr
> Priority: Major
> Labels: backend, workload-management
>
> Implement a coordinator startup flag that limits the max length (number of
> characters) of the insert DML statement that inserts records into the
> impala_query_log table.
> The purpose of this flag is to ensure that workload management does not
> generate an insert DML statement that exceeds Impala's max length for a sql
> statement (approximately 16 megabytes or 16 million characters).
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