Details
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Improvement
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Resolution: Unresolved
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Minor - P4
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None
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None
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None
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Query Optimization
Description
From docs "$toLower only has a well-defined behavior for strings of ASCII characters."
As a result, BIC pushdown of the lcase (lowercase) function gives incorrect results for some characters, for example: ƏŨÓ€. Lowercase versions would be əũó€, but
{ $toLower : "ƏŨÓ€"}
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leaves the characters unchanged.
It would be great if additional characters like these were supported.