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sdmx-twg / vtl

This repository is used for maintaining the SDMX-VTL specification
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Arguments explanation #214

Closed stratosn closed 1 year ago

stratosn commented 7 years ago
reporter issue reference document (UM/RM/EBNF) page line
DI-12 RM 104 and, or, xor, not (and many others)

Issue Description

The description of the arguments uses the structure specification enclosed in square brackets. Inside there is a pipe ("|") separating the dataset part from type Boolean. This is not a valid type in VTL, and if it is meant to represent a type pattern, it looks improvised (it is not defined) and obscures more than it clarifies. One of the key requirements, that the two datasets must be joinable, is not even mentioned.

Proposed Solution

Explain arguments in a more natural and readable form, e.g. for and: Parameters: ds_1: a Boolean or a dataset,ds_2: a Boolean or a dataset. Constraints:If ds_1 is a dataset, it needs to have at least one Boolean measure. The same holds for ds_2, If both ds_1 and ds_2 are datasets, they have to be joinable, i.e., all identifiers of ds_1 must also be (in name and type) in ds_2 or vice versa.

linardian commented 1 year ago

Refers to an old version of documentation