(require 'rwbisam)
rwbisam is a sophisticated basetable implementation built on
WB and SCM which uses binary numerical formats for keys and nonkey
fields. It supports IEEE floatingpoint and fixedprecision integer
keys with the correct numerical collation order.
In addition to the types described for wbtable, rwbisam supports the following types for keys and values:
r64  Real represented by one IEEE 64.bit number.

r32  Real represented by one IEEE 32.bit number.

s64  Signed 64.bit integer.

s32  Signed 32.bit integer.

s16  Signed 16.bit integer.

s8  Signed 8.bit integer.

u64  Nonnegative 64.bit integer.

u32  Nonnegative 32.bit integer.

u16  Nonnegative 16.bit integer.

u8  Nonnegative 8.bit integer.

Complex numbers are supported for nonkey fields:
c64  Complex represented by two IEEE 64.bit numbers.

c32  Complex represented by two IEEE 32.bit numbers.
