Cannot accommodate all the fractional seconds in case of table columns

Copy SQL

WITH temp_col AS (SELECT c.table_schema, t.table_type, c.table_name, c.column_name, c.data_type, coalesce(column_default, domain_default) AS def, c.datetime_precision
FROM INFORMATION_SCHEMA.columns AS c LEFT JOIN INFORMATION_SCHEMA.domains AS d
ON c.domain_schema=d.domain_schema AND c.domain_name=d.domain_name
INNER JOIN INFORMATION_SCHEMA.tables AS t USING (table_schema, table_name)
WHERE c.data_type IN ('timestamp without time zone', 'timestamp with time zone') 
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)),
precisions AS (SELECT table_schema, table_type, table_name, column_name, data_type, datetime_precision, def, (CASE WHEN regexp_replace(def, '[^0-9]', E'', 'g')='' THEN '6' ELSE regexp_replace(def, '[^0-9]', E'', 'g') END)::INT AS def_precision
FROM temp_col
WHERE def ILIKE 'LOCALTIMESTAMP%' OR def LIKE 'CURRENT_TIMESTAMP%')
SELECT table_schema, table_type, table_name, column_name, data_type, datetime_precision, def, def_precision
FROM Precisions
WHERE def_precision>datetime_precision
ORDER BY table_type, table_schema, table_name, column_name;