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https://issues.apache.org/jira/browse/IMPALA-8576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fang-Yu Rao reassigned IMPALA-8576:
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Assignee: Fang-Yu Rao
> Pass lineage object instead of string to query hook
> ---------------------------------------------------
>
> Key: IMPALA-8576
> URL: https://issues.apache.org/jira/browse/IMPALA-8576
> Project: IMPALA
> Issue Type: Sub-task
> Components: Backend, Frontend
> Reporter: radford nguyen
> Assignee: Fang-Yu Rao
> Priority: Major
>
> The {{QueryEventHook}} interface currently takes a {{String}} for the
> {{onQueryComplete}} hook. This string is the JSON representation of the
> lineage graph written to the legacy lineage file.
> It would be better to pass the serialized {{byte[]}} of the lineage thrift
> object itself, so that we can decouple ourselves from any lineage file
> format(s).
> Additionally, hook implementations should use their own version of Thrift to
> deserialize the object so that they are not tied to Impala's Thrift version.
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