Comments (2)
Similar issue in json_extract_path_text
, as well as a missing for loop there
CREATE FUNCTION json_extract_path_text(json_string text, VARIADIC path_elems character[]) RETURNS text immutable as $$
import json
result = json.loads(json_string)
for path_elem in path_elems:
if path_elem not in result: return ""
result = result[path_elem]
return json.dumps(result).strip('"')
$$ LANGUAGE plpythonu;
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In addition to a strip on the returning values, a check that the index is valid is needed.
CREATE OR REPLACE FUNCTION json_extract_array_element_text(json_array text, array_index int) RETURNS text immutable as $$
import json
items = json.loads(json_array)
if 0 <= array_index and array_index < len(items):
return json.dumps(items[array_index]).strip('"')
else:
return None
$$ LANGUAGE plpythonu;
from docker-pgredshift.
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