Re: Konstantin Knizhnik 2017-09-01 <f530ede0-1bf6-879c-c362-34325514f...@postgrespro.ru> > + Functional index is based on on projection function: function which > extract subset of its argument. > + In mathematic such functions are called non-injective. For injective > function if any attribute used in the indexed > + expression is changed, then value of index expression is also changed.
This is Just Wrong. I still think what you are doing here doesn't have anything to do with the function being injective or not. Christoph -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
