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  1. Core Server
  2. SERVER-36429

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

    • Type: Icon: New Feature New Feature
    • Resolution: Unresolved
    • Priority: Icon: Minor - P4 Minor - P4
    • None
    • Affects Version/s: None
    • Component/s: Aggregation Framework
    • Labels:
      None
    • Query Optimization

      $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.

            Assignee:
            backlog-query-optimization Backlog - Query Optimization
            Reporter:
            dev.ashevchuk@gmail.com Andrew Shevchuk
            Votes:
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              Created:
              Updated: