Query parameters and collectionFormat

[vacuumdreams]

Describe the solution you'd like

Based on the documentation below, array types in the query should be sent based on the collectionFormat property of an array type query parameter with the following options: csv, ssv, tsv, pipes, multi.
Currently only the multi format is supported, contrary to the specs which are explicitly define csv as the default.

Reference: https://swagger.io/docs/specification/2-0/describing-parameters/#query-parameters

Request:

Support all valid array collection formats, defaulting to csv.

[zacaj]

Running into this on a project... Very confusing that it supports only one option, and it's not even the default option. Now we're going to need to adapt all our frontend code to manually convert to csv