Do not assume you must use files

Query 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 about the query:

The query considers both column names in English and Estonian.

Query type:

Problem detection (Each row in the result could represent a flaw in the design)

Query reliability:

Medium (Medium number of false-positive results)

Query license:

MIT License

Data source:

INFORMATION_SCHEMA only

SQL query:

Click on query to copy it

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 where the query belongs to

Collection name	Collection description
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

Collection name

Collection description

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

Categories where the query belongs to

Category name	Category description
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

Category name

Category description

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

Reference materials for further reading

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

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