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/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers