Find rule names that are used in a database in more than one schema. Different things should have different names. But here different rules have the same name. Also make sure that this is not a duplication.
Notes
In case of the string_agg function, the line break (br) tag is used as a part of the separator for the better readability in case the query result is displayed in a web browser.
Type
General (Overview of some aspect of the database.)
SELECT rulename, Count(*) AS number_of_occurrences, Count(DISTINCT schemaname) AS number_of_different_schemas, string_agg(schemaname || '.' || tablename, '; ' ORDER BY schemaname, tablename) AS tables
FROM pg_rules
GROUP BY rulename
HAVING Count(*)>1 AND Count(DISTINCT schemaname)>1
ORDER BY Count(*) DESC, rulename;
Collections
This query belongs to the following collections:
Name
Description
Find problems by overview
Queries that results point to different aspects of database that might have problems. A human reviewer has to decide based on the results as to whether there are problems or not .
Categories
This query is classified under the following categories:
Name
Description
Comfortability of database evolution
Queries of this category provide information about the means that influence database evolution.
Domains
Queries of this category provide information about reusable specifications of column properties.
Naming
Queries of this category provide information about the style of naming.
Triggers and rules
Queries of this category provide information about triggers and rules in a database.