Examples for `Scale="floating"`

[HeikoTheissen]

OData-CSDL, section 3.4.3 states that

The value floating means that the decimal value represents a decimal floating-point number whose number of significant digits is the value of the Precision facet.

It then contains an example for Precision=7 and a floating Scale.

Allowed values: -1.234567e3, 1e-101, 9.999999e96, not allowed values: 1e-102 and 1e97 due to the limited precision.

Why is 1e-101 allowed but 1e-102 not? Neither has 7 digits specified. Or have I misunderstood this and it is not about the number of specified digits at all?

[ralfhandl]

See https://en.wikipedia.org/wiki/Decimal32_floating-point_format.

Scale=floating means DECFLOAT, with

• Precision=7 -> 32-bit
• Precision=16 -> 64-bit
• Precision=34 -> 128-bit

Apparently we don't mention this 😞