On Fri, Jun 9, 2017 at 1:45 PM, Peter Eisentraut
<peter.eisentr...@2ndquadrant.com> wrote:
> 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?

Yeah, just with bugs.  If ICU has a non-buggy equivalent, then we can
make this work.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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