Query below allow to get number of references from tables.

See also:

• Tables with most relationships
• Most referenced tables.

Query

select table_schema || '.' || table_name
            as table,
       count(*) as foreign_keys,
       count(distinct reference_table_schema ||'.'|| reference_table_name)
            as referenced_tables
from v_catalog.foreign_keys
group by table_schema,
         table_name
order by count(*) desc;

Columns

• table_name - schema name followed with table name
• foreign_keys - number of FKs in a table
• referenced_tables - count of referenced tables. (Many foreign keys can reference to the same table)

Rows

• One row represents one table
• Scope of rows: all tables which are referencing to tables
• Ordered by count of foreign keys descending

Sample results