| 901 | Perhaps primary key columns could be renamed | Find the names of simple primary key columns that name does not follow the pattern _id or _code but it is quite similar. | Problem detection | system catalog base tables only | 2022-12-01 14:34 | MIT License | |
| 902 | Perhaps Trim is missing | Find derived tables (views and materialized views) that apparently concatenate values (by using || operator or use Concat function or use Format function) by putting a space between these but do not use Trim function to get rid of the extra space at the beginning or the end of the string. | Problem detection | system catalog base tables only | 2023-12-13 13:53 | MIT License | |
| 903 | Perhaps unnecessary privileges to use the database | Find as to whether a database user (except postgres), who is not a superuser, has Create (C) or Temporary (T) privileges to use the database. | Problem detection | system catalog base tables only | 2021-11-23 20:42 | MIT License | |
| 904 | Personal names are unique | Find all primary key and unique constraints of base tables that involve at least one column with personal names. Personal names are not unique and these cannot be (usually) used to guarantee uniqueness. Either one has declared a superkey instead of candidate key (i.e., the key contains a column that is not needed for uniqueness) or the key columns have been found incorrectly. | Problem detection | system catalog base tables only | 2021-02-25 17:29 | MIT License | |
| 905 | Privileges on the database and its schemas, domains, types, languages, sequences, foreign data wrappers, and foreign servers | Find privileges on the database and its schemas, domains, types, languages, sequences, foreign data wrappers, and foreign servers that are not for the owner and not for the systemic user postgres. Make sure that there is the right amount of privileges for each and every relevant user. | General | system catalog base tables only | 2021-03-07 20:57 | MIT License | |
| 906 | Privileges on the database and its schemas, domains, types, languages, sequences, foreign data wrappers, and foreign servers that have been granted to a superuser | Find privileges on the database and its schemas, domains, types, languages, sequences, foreign data wrappers, and foreign servers that have been granted to a superuser. Superuser can do anything in the database and thus does not need the privileges. The result is a sign that perhaps the executed GRANT statements were incorrect (wrong username) or the grantee later got superuser status (that it shouldn't have). | Problem detection | system catalog base tables only | 2022-10-21 15:53 | MIT License | |
| 907 | Publications with no tables | Find publications that do not contain any table. | Problem detection | system catalog base tables only | 2021-02-25 17:30 | MIT License | |
| 908 | PUBLIC has TEMPORARY privilege in the database | Find as to whether PUBLIC (all current and future users) has TEMPORARY privilege in the database. PUBLIC gets the privilege by default. | Problem detection | system catalog base tables only | 2021-12-31 15:52 | MIT License | |
| 909 | Recursive relationships with the same source and target | Find incorrectly implemented adjacency lists. | Problem detection | system catalog base tables only | 2021-02-25 17:30 | MIT License | |
| 910 | Recursive rules that directly modify their home table | Do not cause potentially infinite loops. Recursive rules would fire itself over and over again. Although the system is able to detect these after executing a data modification statement it is better to avoid creating these altogether. | Problem detection | system catalog base tables only | 2022-10-21 15:59 | MIT License | |
| 911 | Redundant indexes | Find indexes that may be redundant. In addition to identical indexes it also considers indexes that cover the same columns and have the same properties except uniqueness. The query considers all types of indexes, including indexes that have been automatically created to support a constraint and function-based indexes. | Problem detection | system catalog base tables only | 2021-02-25 17:29 | MIT License | |
| 912 | Referential degree of tables (ver 2) | Find how many base tables are referenced from a base table by using foreign keys. | Sofware measure | system catalog base tables only | 2021-03-12 11:06 | MIT License | |
| 913 | Rules with the same name in different schemas | 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. | General | system catalog base tables only | 2020-11-06 14:51 | MIT License | |
| 914 | Rules with the same name within the same schema | Find names of rules that are used within the same schema more than once. Give different triggers different names. | Problem detection | system catalog base tables only | 2021-02-25 17:30 | MIT License | |
| 915 | Sequences that are not owned by a table column | Find sequence generators that are not owned by a table column, i.e., if one drops the table or the column, then the sequence generator stays in place. | Problem detection | system catalog base tables only | 2023-10-06 14:40 | MIT License | |
| 916 | Short cycle (columns) | Find cases where two candidate keys of the same table that are also foreign keys reference to each other. | Problem detection | system catalog base tables only | 2021-11-28 02:08 | MIT License | |
| 917 | Simple primary keys that column name does not contain the table name | Find simple primary keys that column name does not contain the table name. The naming should be clear and consistent. | Problem detection | system catalog base tables only | 2023-03-19 10:35 | MIT License | |
| 918 | System-generated table constraint names (constraints that involve one column) | Find the names of database constraints that have been system-generated. Additional restrictions are that the constraints must involve only one column and are associated directly with a table (not through a domain). Names should follow the same style. If there is a mix of system-generated and user-defined names, then the style is most probably different. | Problem detection | system catalog base tables only | 2021-12-10 12:47 | MIT License | |
| 919 | Table constraints with the cardinality bigger than one | Find constraints that involve more than one columns. Check as to whether the names follow a common style or not. | General | system catalog base tables only | 2020-11-19 13:34 | MIT License | |
| 920 | Table constraints with the same name (constraints connected directly with a base table or a foreign table) | Find base table and foreign table constraint names that are used in a database more than once (possibly in different schemas or in case of different types of constraints). Different things should have different names. But here different constraints have the same name. Also make sure that this is not a sign of duplication. | Problem detection | system catalog base tables only | 2022-11-15 16:43 | MIT License | |