Use Unicode-aware implementations of LOWER() and UPPER() in SQL queries #865
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Fixes #840 by creating application-defined SQL functions (https://www.sqlite.org/appfunc.html) for Unicode-aware implementations of
LOWER()
andUPPER()
. This usesString.prototype.toLower/UpperCase()
JS method.I initially wanted to just redefine
LOWER()
andUPPER()
but due to sql.js not supporting the definition of deterministic functions, I had to just define them as separate functions and use that in the appropriate places. It's probably better like that anyway...