WITH plural_singular AS (SELECT nspname AS table_schema, relname AS table_name, 
CASE WHEN relkind='r' THEN 'BASE TABLE'
WHEN relkind='v' THEN 'VIEW'
WHEN relkind='m' THEN 'MATERIALIZED VIEW'
WHEN relkind='f' THEN 'FOREIGN TABLE'
WHEN relkind='p' THEN 'PARTITIONED TABLE'
END AS table_type,
CASE WHEN regexp_replace(relname,'(stats_|stats$|status$|state$|alias|address|pays$|group$|lock$|sys|class$)','','g') ~* '(?<!((^|_)[[:alnum:]]{0,2}|(^|_)[bcdfghjklmnpqrsztvwxz]{0,4}|s))s(_|$)' 
THEN 'Perhaps plural' ELSE 'Perhaps singular' END AS comment_about_the_table_name
FROM pg_class INNER JOIN pg_namespace ON pg_class.relnamespace=pg_namespace.oid
WHERE relkind IN ('r','v','m','f','p')
AND nspname NOT IN (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL))
SELECT table_type, comment_about_the_table_name, Count(*) AS nr_of_tables
FROM plural_singular
GROUP BY table_type, comment_about_the_table_name
ORDER BY table_type, Count(*) DESC, comment_about_the_table_name;