| Query goal: | Find user-defined routines that contain a SQL statement that does not give the name to a column in a SQL statement. |
| Notes about the query: | Refers to the column pg_proc.prokind and thus works starting from PostgreSQL 11. In the returned body of routine the query replaces each newline character with the line break (br) tag for the better readability in case the query result is displayed in a web browser. There could be multiple routines with the same name but with different parameters in the same schema (overloading). Thus, for the unique identification of the routine it is necessary to present also its parameters in addition to the schema name and routine name. The query searches a system-defined column name ?column?. |
| Query type: | Problem detection (Each row in the result could represent a flaw in the design) |
| Query reliability: | High (Few or no false-positive results) |
| Query license: | MIT License |
| Fixing suggestion: | Give explicit name to a column so that the system does not have to give the name like "?column?". |
| Data source: | INFORMATION_SCHEMA+system catalog |
| SQL query: | Click on query to copy it
SELECT pg_namespace.nspname AS routine_schema, pg_proc.proname AS routine_name, pg_get_function_identity_arguments(pg_proc.oid) AS parameters, CASE WHEN pg_proc.prokind='f' THEN 'FUNCTION' WHEN pg_proc.prokind='p' THEN 'PROCEDURE' WHEN pg_proc.prokind='w' THEN 'WINDOW FUNCTION' END AS routine_type, regexp_replace(regexp_replace(regexp_replace(pg_get_functiondef(pg_proc.oid),'<','<','g'),'[\r\n]','<br>','g'),'\?column\?','<b>\1</b>','g') AS routine_src, pg_language.lanname AS language FROM pg_catalog.pg_proc, pg_catalog.pg_namespace, pg_catalog.pg_language WHERE pg_proc.pronamespace = pg_namespace.oid AND pg_proc.prolang = pg_language.oid AND pg_proc.prokind<>'a' AND pg_namespace.nspname NOT IN (SELECT schema_name FROM INFORMATION_SCHEMA.schemata WHERE schema_name<>'public' AND schema_owner='postgres' AND schema_name IS NOT NULL) AND pg_get_functiondef(pg_proc.oid)~*'"\?column\?' ORDER BY routine_schema, routine_name, parameters; |
| Collection name | Collection description |
|---|---|
| Find problems automatically | Queries, 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 . |
| Category name | Category description |
|---|---|
| Naming | Queries of this category provide information about the style of naming. |
| User-defined routines | Queries of this category provide information about the user-defined routines |