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https://issues.apache.org/jira/browse/CALCITE-3951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17118402#comment-17118402
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Ruben Q L commented on CALCITE-3951:
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[~zabetak], 1.23 has been released and master is open, do you think we could
move on with [PR#1937|https://github.com/apache/calcite/pull/1937]? Thanks.
> Support different string comparison based on SqlCollation
> ---------------------------------------------------------
>
> Key: CALCITE-3951
> URL: https://issues.apache.org/jira/browse/CALCITE-3951
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Ruben Q L
> Assignee: Ruben Q L
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.24.0
>
> Time Spent: 3h
> Remaining Estimate: 0h
>
> Currently SqlCollation defines concepts like Coercibility, Charset, Locale,
> etc. However, we cannot specify on a certain collation that e.g. a string
> field should use case insensitive comparison. The goal of this ticket is to
> evolve SqlCollation to support that, and adapt the corresponding classes to
> use that (optional) "non-standard" comparison.
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