QGIS/resources/function_help/json/map_to_hstore

{
  "name": "map_to_hstore",
  "type": "function",
  "description": "Merge map elements into a hstore-formatted string.",
  "arguments": [
    {"arg":"map", "description":"the input map"}],
  "examples": [ { "expression":"map_to_hstore(map('qgis','rocks'))", "returns":"\"qgis\"=>\"rocks\"}"}
  ]
}