CREATE OR REPLACE FUNCTION jsonbNull(jsonb_column JSONB)
returns boolean as $$
declare
isPoint text := jsonb_typeof(jsonb_column) ;
begin
CASE isPoint
WHEN 'array' THEN
if true = ALL(select (jsonb_array_elements(jsonb_column)) = '{}') THEN
return true;
else
return false;
end if;
WHEN 'object' THEN
if jsonb_column = '{}' THEN
return true;
else
return false;
end if;
WHEN 'string' THEN
return false;
ELSE
return true;
END CASE;
end;
$$ LANGUAGE plpgsql IMMUTABLE;
As far as I can tell, it seems like this could be re-written as a function in SQL instead of plpgsql which allows for it to be in-lined. Have you tested performance and found it to be an issue, or just optimizing in advance of a need?
