mirror of https://github.com/postgres/postgres
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, AdriaanREL7_0_PATCHES
Bruce Momjian
26 years ago
parent
5454b37921
commit
51cfdae50f
@ -0,0 +1,29 @@ |
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create table bit_example (a bits, b bits); |
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copy bit_example from stdin; |
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X0F X10 |
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X1F X11 |
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X2F X12 |
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X3F X13 |
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X8F X04 |
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X000F X0010 |
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X0123 XFFFF |
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X2468 X2468 |
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XFA50 X05AF |
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X12345 XFFF |
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\. |
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|
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select a,b,a||b as "a||b", bitsubstr(a,4,4) as "sub(a,4,4)", |
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bitsubstr(b,2,4) as "sub(b,2,4)", |
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bitsubstr(b,5,5) as "sub(b,5,5)" |
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from bit_example; |
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select a,b,~a as "~ a",~b as "~ b",a & b as "a & b", |
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a|b as "a | b", a^b as "a ^ b" from bit_example; |
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select a,b,a<b as "a<b",a<=b as "a<=b",a=b as "a=b", |
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a>=b as "a>=b",a>b as "a>b",a<=>b as "a<=>b" from bit_example; |
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select a,a<<4 as "a<<4",b,b>>2 as "b>>2" from bit_example; |
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select a,b,a||b as "a||b", bitsubstr(a,4,4) as "sub(a,4,4)", |
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bitsubstr(b,2,4) as "sub(b,2,4)", |
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bitsubstr(b,5,5) as "sub(b,5,5)" |
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from bit_example; |
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|
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drop table bit_example; |
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@ -0,0 +1,36 @@ |
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DROP FUNCTION biteq(bits,bits); |
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DROP OPERATOR = (bits,bits); |
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DROP FUNCTION bitne(bits,bits); |
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DROP OPERATOR <> (bits,bits); |
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DROP FUNCTION bitlt(bits,bits); |
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DROP OPERATOR < (bits,bits); |
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DROP FUNCTION bitle(bits,bits); |
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DROP OPERATOR <= (bits,bits); |
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DROP FUNCTION bitgt(bits,bits); |
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DROP OPERATOR > (bits,bits); |
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DROP FUNCTION bitge(bits,bits); |
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DROP OPERATOR >= (bits,bits); |
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DROP FUNCTION bitcmp(bits,bits); |
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DROP OPERATOR <=> (bits,bits); |
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|
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DROP FUNCTION bitor(bits,bits); |
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DROP OPERATOR | (bits,bits); |
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DROP FUNCTION bitand(bits,bits); |
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DROP OPERATOR & (bits,bits); |
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DROP FUNCTION bitxor(bits,bits); |
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DROP OPERATOR ^ (bits,bits); |
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DROP FUNCTION bitnot(bits); |
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DROP OPERATOR ~ (none,bits); |
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|
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DROP FUNCTION bitshiftleft(bits,int4); |
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DROP OPERATOR << (bits,int4); |
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DROP FUNCTION bitshiftright(bits,int4); |
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DROP OPERATOR >> (bits,int4); |
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|
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DROP FUNCTION bitsubstr(bits,integer,integer); |
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DROP OPERATOR || (bits,bits); |
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DROP FUNCTION bitcat(bits,bits); |
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|
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DROP FUNCTION varbit_in(opaque); |
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DROP FUNCTION varbit_out(opaque); |
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DROP TYPE bits; |
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@ -0,0 +1,171 @@ |
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LOAD '_OBJWD_/varbit.so'; |
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|
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CREATE FUNCTION varbit_in(opaque) |
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RETURNS bit |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'c'; |
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|
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CREATE FUNCTION varbit_out(opaque) |
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RETURNS opaque |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'c'; |
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|
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CREATE TYPE bits ( |
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internallength = -1, |
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input = varbit_in, |
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output = varbit_out |
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); |
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|
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CREATE FUNCTION bitcat(bits,bits) RETURNS bits |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR || ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitcat |
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); |
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|
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CREATE FUNCTION bitsubstr(bits,integer,integer) RETURNS bits |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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|
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CREATE FUNCTION biteq(bits,bits) RETURNS bool |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR = ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = biteq, |
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negator = <>, |
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commutator = = |
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); |
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|
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CREATE FUNCTION bitne(bits,bits) RETURNS bool |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR <> ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitne, |
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negator = =, |
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commutator = <> |
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); |
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|
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CREATE FUNCTION bitlt(bits,bits) RETURNS bool |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR < ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitlt |
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); |
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|
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CREATE FUNCTION bitle(bits,bits) RETURNS bool |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR <= ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitle |
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); |
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|
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CREATE FUNCTION bitgt(bits,bits) RETURNS bool |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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|
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CREATE OPERATOR > ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitgt, |
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negator = <=, |
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commutator = < |
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); |
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|
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CREATE FUNCTION bitge(bits,bits) RETURNS bool |
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as '_OBJWD_/varbit.so' |
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language 'C'; |
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CREATE OPERATOR >= ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitge, |
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negator = <, |
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commutator = <= |
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); |
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|
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CREATE FUNCTION bitcmp(bits,bits) RETURNS int4 |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR <=> ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitcmp |
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); |
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CREATE FUNCTION bitor(bits,bits) RETURNS bits |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR | ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitor, |
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commutator = | |
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); |
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|
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CREATE FUNCTION bitand(bits,bits) RETURNS bits |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR & ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitand, |
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commutator = & |
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); |
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|
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CREATE FUNCTION bitxor(bits,bits) RETURNS bits |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR ^ ( |
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leftarg = bits, |
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rightarg = bits, |
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procedure = bitxor |
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); |
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CREATE FUNCTION bitnot(bits) RETURNS bits |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR ~ ( |
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rightarg = bits, |
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procedure = bitnot |
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); |
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CREATE FUNCTION bitshiftleft(bits,int4) RETURNS bits |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR << ( |
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leftarg = bits, |
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rightarg = int4, |
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procedure = bitshiftleft |
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); |
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CREATE FUNCTION bitshiftright(bits,int4) RETURNS bits |
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AS '_OBJWD_/varbit.so' |
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LANGUAGE 'C'; |
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CREATE OPERATOR >> ( |
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leftarg = bits, |
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rightarg = int4, |
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procedure = bitshiftright |
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); |
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@ -0,0 +1,22 @@ |
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/* Glue file to use varbit before it is properly integrated with postgres */ |
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#include "varbit.h" |
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bits8 * varbit_in (char * s); |
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char * varbit_out (bits8 *s); |
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bits8 * |
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varbit_in (char * s) { |
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return varbitin (s, 0, -1); |
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} |
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/*char *
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varbit_out (bits8 *s) { |
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return zpbitout(s); |
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} |
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*/ |
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char *
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varbit_out (bits8 *s) { |
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return zpbitsout(s); |
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} |
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