Goal Find cases where you store images and other media as files outside the database and store in the database only paths to the files.
Notes The query considers both column names in English and 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 (opens in new tab)
Data Source INFORMATION_SCHEMA only
SQL Query 
SELECT table_schema, table_name, column_name,  data_type, character_maximum_length
FROM INFORMATION_SCHEMA.columns
WHERE data_type~*'(char|text)' 
AND column_name~*'(file|fail|path|tee|picture|photo|drawing|pilt|joonis|sound|heli|video)'
AND column_name!~*'(type|size|profile|prefix|suffix|tyyp|suurus|http|ftp|fax|db_|(file|bin).*data|content|raw|sisu)'
AND (character_maximum_length>4 OR character_maximum_length IS NULL)
AND (table_schema, table_name) IN (SELECT table_schema, table_name
FROM INFORMATION_SCHEMA.tables WHERE table_type='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 table_schema, table_name, ordinal_position;

Collections

This query belongs to the following collections:

Find problems about base tables

A selection of queries that return information about the data types, field sizes, default values as well as general structure of base tables. Contains all the types of queries - problem detection, software measure, and general overview

NameDescription
Find problems about base tablesA selection of queries that return information about the data types, field sizes, default values as well as general structure of base tables. Contains all the types of queries - problem detection, software measure, and general overview

Categories

This query is classified under the following categories:

Database design antipatterns

Queries of this category provide information about possible occurrences of SQL database design antipatterns.

Result quality depends on names

Queries of this category use names (for instance, column names) to try to guess the meaning of a database object. Thus, the goodness of names determines the number of false positive and false negative results.

Structure of base tables

Queries of this category provide information about the structuring of base tables at the database conceptual level

NameDescription
Database design antipatternsQueries of this category provide information about possible occurrences of SQL database design antipatterns.
Result quality depends on namesQueries of this category use names (for instance, column names) to try to guess the meaning of a database object. Thus, the goodness of names determines the number of false positive and false negative results.
Structure of base tablesQueries of this category provide information about the structuring of base tables at the database conceptual level

Further reading and related materials:

This is one of the antipatterns from the Bill Karwin's book of SQL antipatterns. See Chapter 12: Phantom Files.
https://stackoverflow.com/questions/54500/storing-images-in-postgresql
Reference
This is one of the antipatterns from the Bill Karwin's book of SQL antipatterns. See Chapter 12: Phantom Files.
https://stackoverflow.com/questions/54500/storing-images-in-postgresql