Option to render query logs in multiple lines

[MartinaDimova]

Description

Query logging, prints one-line JSON objects into the standard output.

Suggestion for upgrading into extendable query logging functionality so standard output can be properly captured in the main log.

[bcogrel]

I personally appreciate having the JSON rendered in one line, as it makes very easy to copy and study in a separate tool, like https://jqplay.org/ .

An option could be added to Ontop to render the JSON differently, for those who prefer only reading from the log.