Re: [HACKERS] strcmp() tie-breaker for identical ICU-collated strings - Mailing list pgsql-hackers

On 6/9/17 12:17, Robert Haas wrote:
> IOW, suppose there
> were a collation API call distill() which had the property that
> strcmp(distill(X), distill(Y)) == 0 iff X and Y are considered equal
> under that collation.  Then, you could define your hash function as
> hash_any(distill(X)).  Alternatively, if the collation library
> provided its own hashing function, that would be fine too, and
> probably faster.

Isn't that what strxfrm() is?

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
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