Reference to the numeric type is too imprecise, i.e., precision and scale are missing

SELECT table_schema, table_name, column_name, data_type, numeric_precision, numeric_scale
FROM INFORMATION_SCHEMA.columns
WHERE data_type IN ('decimal', 'numeric') AND 
(table_schema, table_name) IN (SELECT table_schema, table_name
FROM INFORMATION_SCHEMA.tables WHERE table_type='BASE TABLE') AND 
table_schema NOT IN (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL) AND
(numeric_precision IS NULL AND numeric_scale IS NULL)
ORDER BY table_schema, table_name, ordinal_position;