User feature request: searching descriptions

[peterdutey]

Several requests have come through for the following features which depend on Snowstorm/Elastic:

• fuzzy searches: see request to Snowstorm developers
• boolean searches: e.g. if building a clinical codelist for 'primary hypertension' (i.e. high blood pressure that's not secondary to some other pathology), my search strategy may be something like use concept_find() for any descriptions matching (('essential' OR primary') AND ('hypertension')) BUT NOT ('pulmonary' OR 'intracranial')
  • -> workaround with grepl is possible and could be explained in vignette
  • -> Snowstorm 7.9 will support ECL 1.5 and description filters