Hi,

here is an updated version of the bit type with a bugfix and all the necessa
ry
SQL functions defined. This should replace what is currently in contrib. I'd
appreciate any comments on what is there.

Kind regards,

Adriaan

contrib/bit/varbit.demo.sql

@@ -0,0 +1,29 @@
+create table bit_example (a bits, b bits);
+copy bit_example from stdin;
+X0F	X10
+X1F	X11
+X2F	X12
+X3F	X13
+X8F	X04
+X000F	X0010
+X0123	XFFFF
+X2468	X2468
+XFA50	X05AF
+X12345	XFFF
+\.
+
+select a,b,a||b as "a||b", bitsubstr(a,4,4) as "sub(a,4,4)", 
+	bitsubstr(b,2,4) as "sub(b,2,4)", 
+	bitsubstr(b,5,5) as "sub(b,5,5)"
+	from bit_example;
+select a,b,~a as "~ a",~b as "~ b",a & b as "a & b", 
+	a|b as "a | b", a^b as "a ^ b" from bit_example;
+select a,b,a<b as "a<b",a<=b as "a<=b",a=b as "a=b",
+        a>=b as "a>=b",a>b as "a>b",a<=>b as "a<=>b" from bit_example;
+select a,a<<4 as "a<<4",b,b>>2 as "b>>2" from bit_example;
+select a,b,a||b as "a||b", bitsubstr(a,4,4) as "sub(a,4,4)", 
+	bitsubstr(b,2,4) as "sub(b,2,4)", 
+	bitsubstr(b,5,5) as "sub(b,5,5)"
+	from bit_example;
+
+drop table bit_example;