On 2/8/19 10:04 AM, liviuslivius wrote:
Hi
Can we discusse about CORE-5997?
Why it was so fast closed as its iplementation is so important from
performance POV?
In mentioned tracker ticket I see:
> This is e.g. slow compared to udf equivalent
I.e. I assume that this problem is raised due to UDR deprecation?
Why not use UDR (written using any language you like) for complex
strings manipulatons?
Adriano say that strings are immutable - but this is only some
implementation detail - all strings in C++ are mutable.
C++ is not good example here. First of all there are no strings in C/C++
at all. Just arrays of characters or classes with redefined [] operator.
And std::string is also not string you want. This typedef for
basic_string<char> does not understand UTF-8 like you probably wish
writing char_length (not octet_length) in your sample. Also being
generic array, not real string, std::string does not understand
upper/lower case operations, trimming strings, may be something else.
I do not want to say that I hate your idea in general. But IMO in
curretn state it's not ready for implementation.
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