Goal Find table constraints (constraints that are associated directly with the table) that have too generic names like "key" or the name contain too generic words like "data" (all constraints restrict data in the table), or the name is an abbreviation of a constraint type name.
Notes The query considers both names in English and in Estonian.
Type Problem detection (Each row in the result could represent a flaw in the design)
Reliability Medium (Medium number of false-positive results)
License MIT License
Fixing Suggestion Rename the constraints.
Data Source system catalog only
SQL Query
SELECT
n.nspname AS table_schema,
c.relname AS table_name,
CASE WHEN c.relkind='r' THEN 'BASE TABLE'
WHEN c.relkind='v' THEN 'VIEW'
WHEN c.relkind='m' THEN 'MATERIALIZED VIEW'
WHEN c.relkind='f' THEN 'FOREIGN TABLE'
WHEN c.relkind='p' THEN 'PARTITIONED TABLE'
ELSE 'TABLE' END AS table_type,
CASE WHEN o.contype='p' THEN 'PRIMARY KEY'
WHEN o.contype='u' THEN 'UNIQUE'
WHEN o.contype='f' THEN 'FOREIGN KEY'
WHEN o.contype='c' THEN 'TABLE CHECK'
WHEN o.contype='x' THEN 'EXCLUDE'
WHEN o.contype='t' THEN 'CONSTRAINT TRIGGER' END AS suspected_constraint_type,
o.conname AS suspected_name
FROM pg_constraint o INNER JOIN pg_class c ON o.conrelid=c.oid
INNER JOIN pg_namespace AS n ON n.oid=c.relnamespace
INNER JOIN pg_authid AS a ON n.nspowner=a.oid
WHERE (nspname='public' OR rolname<>'postgres')
AND (o.conname~*'(andme(?!baas)|(?
Collections

This query belongs to the following collections:

NameDescription
Find problems about namesA selection of queries that return information about the names of database objects. Contains all the types of queries - problem detection, software measure, and general overview.
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

This query is classified under the following categories:

NameDescription
CHECK constraintsQueries of this category provide information about CHECK constraints.
NamingQueries of this category provide information about the style of naming.
Relationships between tablesQueries of this category provide information about how database tables are connected to each other and whether such connections have been explicitly defined and whether it has been done correctly.
UniquenessQueries of this category provide information about uniqueness constraints (PRIMARY KEY, UNIQUE, EXCLUDE) as well as unique indexes.