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https://issues.apache.org/jira/browse/CALCITE-7393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18054003#comment-18054003
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Mihai Budiu commented on CALCITE-7393:
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I would appreciate comments from other developers about the right way to change
protected fields.
> Support RelDataTypeDigest
> -------------------------
>
> Key: CALCITE-7393
> URL: https://issues.apache.org/jira/browse/CALCITE-7393
> Project: Calcite
> Issue Type: Sub-task
> Reporter: Wenzhuang Zhu
> Priority: Major
> Labels: pull-request-available
>
> Use RelDataTypeDigest to reduce composite type's digest memory and digest
> relative operation's latency.
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