MassiveJS Get Tables with Key Info v1

gistfile1.sql

deallocate tables;
prepare tables(text, text, text) as
SELECT c.TABLE_NAME, c.COLUMN_NAME, kcu.CONSTRAINT_NAME, c.DATA_TYPE, c.CHARACTER_MAXIMUM_LENGTH, tc.CONSTRAINT_TYPE, 
	CASE tc.CONSTRAINT_TYPE WHEN 'PRIMARY KEY' THEN CAST(1 AS BIt) ELSE CAST(0 AS Bit) END AS IsPrimaryKey, 
	(CASE (
		(SELECT CASE (LENGTH(pg_get_serial_sequence(c.TABLE_NAME, c.COLUMN_NAME)) > 0) WHEN true THEN 1 ELSE 0 END) + 
		(SELECT CASE (SELECT pgc.relkind FROM pg_class pgc WHERE pgc.relname = c.TABLE_NAME || '_' || c.COLUMN_NAME || '_' || 'seq') WHEN 'S"' THEN 1 ELSE 0 END))
	WHEN 0 THEN false ELSE true END) AS IsAuto, c.column_default
FROM information_schema.columns c
LEFT OUTER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE kcu 
	ON c.TABLE_SCHEMA = kcu.CONSTRAINT_SCHEMA AND c.TABLE_NAME = kcu.TABLE_NAME AND c.COLUMN_NAME = kcu.COLUMN_NAME
LEFT OUTER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc
	ON kcu.CONSTRAINT_SCHEMA = tc.CONSTRAINT_SCHEMA AND kcu.CONSTRAINT_NAME = tc.CONSTRAINT_NAME
where 
    tc.constraint_type = 'PRIMARY KEY'
    and 
    ((case -- allow specific schemas (none or '' assumes all):
      when $1 ='' then 1=1 
      else tc.table_schema = any(string_to_array(replace($1, ' ', ''), ',')) end)
    and
    (case -- blacklist tables using LIKE by fully-qualified name (no schema assumes public):
      when $2 = '' then 1=1 
      else replace((tc.table_schema || '.'|| tc.table_name), 'public.', '') not like all(string_to_array(replace($2, ' ', ''), ',')) end))
    or
    (case -- make exceptions for specific tables, with fully-qualified name or wildcard pattern (no schema assumes public). 
      when $3 = '' then 1=0
      -- Below can use '%' as wildcard. Change 'like' to '=' to require exact names: 
      else replace((tc.table_schema || '.'|| tc.table_name), 'public.', '') like any(string_to_array(replace($3, ' ', ''), ',')) end)
order by tc.table_schema,
         tc.table_name,
         kcu.position_in_unique_constraint;

execute tables('', '', '');