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Columns that have the same name as their domain/type

Query goal: Find the columns that name is the same as the name of the type of the column or the domain of the column.
Query type: Problem detection (Each row in the result could represent a flaw in the design)
Query reliability: Low (Many false-positive results)
Query license: MIT License
Data source: INFORMATION_SCHEMA+system catalog
SQL query: Click on query to copy it

WITH columns 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, 
attname AS column_name,
pg_type.typname AS column_type,
domain_type.typname AS column_domain_type
FROM pg_class INNER JOIN pg_namespace ON pg_class.relnamespace=pg_namespace.oid
INNER JOIN pg_attribute ON pg_class.oid=pg_attribute.attrelid
INNER JOIN pg_type ON pg_attribute.atttypid =pg_type.oid
LEFT JOIN pg_type AS domain_type ON domain_type.oid=pg_type.typbasetype
WHERE attnum>=1 
AND 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_schema, table_name, table_type, column_name, column_type, column_domain_type
FROM columns
WHERE column_name ILIKE column_type
OR column_name ILIKE column_domain_type
ORDER BY table_schema, table_name, column_name;

Collections where the query belongs to

Collection nameCollection description
Find problems automaticallyQueries, that results point to problems in the database. Each query in the collection produces an initial assessment. However, a human reviewer has the final say as to whether there is a problem or not .

Categories where the query belongs to

Category nameCategory description
NamingQueries of this category provide information about the style of naming.

The list of all the queries