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  1. Core Server
  2. SERVER-36429

$toUpper / $toLower should support locale-aware case mappings

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Details

    • New Feature
    • Status: Backlog
    • Minor - P4
    • Resolution: Unresolved
    • None
    • None
    • Aggregation Framework
    • None

    Description

      $toUpper / $toLower currently only have defined behavior for ASCII characters. Users should be able to perform case folding / case mapping for all Unicode code points, according to locale-specific rules. It looks like ICU has support for this: http://userguide.icu-project.org/transforms/casemappings.

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            backlog-query-optimization Backlog - Query Optimization
            ashevchuk Andrew Shevchuk
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              Created:
              Updated: