SELECT format('ALTER DOMAIN %1$I.%2$I ADD CONSTRAINT chk_%2$s CHECK(VALUE >=''2022-01-01 00:00:00'' AND VALUE<''2100-01-01 00:00:00'');', domain_schema, domain_name) AS statements
FROM INFORMATION_SCHEMA.domains AS d
WHERE (data_type~*'timestamp') 
AND domain_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 NOT EXISTS (SELECT 1
FROM INFORMATION_SCHEMA.domain_constraints AS dc INNER JOIN INFORMATION_SCHEMA.check_constraints AS cc USING (constraint_schema, constraint_name)
WHERE d.domain_schema=dc.domain_schema AND d.domain_name=dc.domain_name AND cc.check_clause NOT LIKE '%IS NOT NULL' )
AND EXISTS (SELECT 1
FROM INFORMATION_SCHEMA.columns AS c
WHERE d.domain_schema=c.domain_schema AND d.domain_name=c.domain_name 
AND (table_schema, table_name) IN (SELECT table_schema, table_name
FROM INFORMATION_SCHEMA.tables
WHERE table_type IN ('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))
ORDER BY domain_schema, domain_name;

WITH timestamp_simple_chk AS (SELECT 
(SELECT nspname FROM pg_namespace WHERE oid=c.relnamespace) AS table_schema,
c.relname as table_name, 
a.attname AS column_name,
t.typname AS type_name
FROM pg_constraint o INNER JOIN pg_class c ON c.oid = o.conrelid
INNER JOIN pg_attribute a ON a.attrelid = c.oid AND a.attnum = o.conkey[1] AND a.attisdropped = FALSE
INNER JOIN pg_type t ON a.atttypid=t.oid
WHERE cardinality(o.conkey)=1 AND o.contype = 'c' AND 
t.typname ~*'timestamp'),

timestamp_columns AS (SELECT table_schema, table_name, column_name, data_type, character_maximum_length, domain_name, ordinal_position
FROM INFORMATION_SCHEMA.columns
WHERE (data_type ~*'timestamp') AND 
(table_schema, table_name) IN (SELECT table_schema, table_name
FROM INFORMATION_SCHEMA.tables WHERE table_type IN ('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)),

fk_columns AS (select target_schema as table_schema, target_table as table_name, a.attname as column_name
from (select 
(select nspname from pg_namespace where oid=c.relnamespace) as target_schema,
c.relname as target_table, 
c.oid as target_table_oid,
unnest(o.conkey) AS target_col
from pg_constraint o inner join pg_class c on c.oid = o.conrelid
where o.contype = 'f') t
inner join pg_attribute a on t.target_col = a.attnum and t.target_table_oid = a.attrelid and a.attisdropped = false)

SELECT format('ALTER TABLE %1$I.%2$I ADD CONSTRAINT chk_%2$s_%3$s CHECK (%3$I>=''2022-01-01 00:00:00'' AND %3$I<''2100-01-01 00:00:00'');', table_schema, table_name , column_name) AS statements
FROM timestamp_columns AS tc
WHERE domain_name IS NULL AND
NOT EXISTS (SELECT 1 FROM timestamp_simple_chk AS tsc WHERE tc.table_schema=tsc.table_schema AND tc.table_name=tsc.table_name
AND tc.column_name=tsc.column_name) AND
NOT EXISTS (SELECT 1 FROM fk_columns AS f WHERE tc.table_schema=f.table_schema AND tc.table_name=f.table_name
AND tc.column_name=f.column_name)
ORDER BY table_schema, table_name, ordinal_position;