Spec conflict: delta

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Imported from previous forum

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Section 2.1.6 of the field encoding spec says the delta operator can’t be used on a string field of variable length.

But section 7.2.7.3 of the template spec gives a delta example with strings of different lengths for the same field.

So which spec is accurate?

3

Section 2.1.6 of the field encoding spec says the delta operator can’t
be used on a string field of variable length.

But section 7.2.7.3 of the template spec gives a delta example with
strings of different lengths for the same field.

So which spec is accurate?

Both.

The field encoding spec describes FAST 1.0 string delta behavior

The template spec describes a proposed extension for FAST 1.1

1.0 string delta has been renamed “string tail” in 1.1 and the
proposed extension from the template spec will be the new
string delta behavior.

The reason for this change is broaden the applicability of the
string delta operation. We received feedback from several teams
implementing the 1.0 spec that they thought that the 1.0 string
delta operation was too limited.

Please refer to the combined spec draft 1.x.05

/Rolf