Re: Building infrastructure for B-Tree deduplication that recognizes when opclass equality is also equivalence

>>>>> "Antonin" == Antonin Houska <ah@cybertec.at> writes:

 >> It is set to false for numeric and float4, float8.

 Antonin> Are you sure about these?

numeric values can compare equal but have different display scales (see
hash_numeric).

float4 and float8 both have representations for -0, which compares equal
to 0. (numeric technically has a representation for -0 too, but I
believe the current code carefully avoids ever generating it.)

-- 
Andrew (irc:RhodiumToad)