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Writing ehrQL measure outputs to separate files

19 June 2025

ehrQL has always supported having multiple measures defined in a single measure definition file. However the results of these measures were always written to a single, combined output file.

That’s still the default, but you now have the option of having each measure’s output written to a separate file. This might make some downstream processing actions easier. And it makes it possible to selectively submit some measure outputs for release without submitting all of them.