CREATE TABLE foo ( x CHAR(32) PRIMARY KEY, y CHAR(32) NOT NULL, EXCLUDE USING gist ((ARRAY[x, y]) WITH &&) );
ERROR: data type character[] has no default operator class for access method "gist" HINT: You must specify an operator class for the index or define a default operator class for the data type. Neither gist nor gin work. You can do that with integers using the intarray extension module. Could you please suggest me a clean way to achieve the same result (using the char data type, not integers)? Probably I could create a specific operator class or some other workaround, but the intarray implementation looks a bit complex. Someone so kind to point me in the right direction? Of course the following produces the same error: CREATE TABLE bar ( x VARCHAR[] NOT NULL, EXCLUDE USING gist (x WITH &&) );
