| 501 | Insufficient number of user-defined base tables | There must be at least n (seven in this case) user-defined base tables in the database. | Problem detection | INFORMATION_SCHEMA only | 2021-02-25 17:30 | MIT License | |
| 502 | Insufficient number of user-defined domains | There must be at least n (one in this case) user-defined domains in the database each of that must be used in case of at least two columns of base tables. | Problem detection | INFORMATION_SCHEMA only | 2021-02-25 17:30 | MIT License | |
| 503 | Insufficient number of user-defined foreign tables | There must be at least n (two in this case) user-defined foreign tables in the database. | Problem detection | INFORMATION_SCHEMA only | 2021-02-25 17:30 | MIT License | |
| 504 | Insufficient number of user-defined non-trigger routines | There must be at least n (four in this case) user-defined non-trigger routines in the database. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-02-25 17:30 | MIT License | |
| 505 | Insufficient number of user-defined triggers+rules | There must be user-defined triggers and/or rules for at least n (three in this case) tasks in the database. It also means that one should create at least three triggers and/or rules in the database. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2024-01-04 11:47 | MIT License | |
| 506 | Insufficient number of user-defined triggers+rules (based on number of tasks) | There must be user-defined triggers and/or rules for at least n (three in this case) tasks in the database. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2024-01-04 11:46 | MIT License | |
| 507 | Insufficient number of user-defined views | There must be at least n (four in this case) user-defined views in the database. | Problem detection | INFORMATION_SCHEMA only | 2021-02-25 17:30 | MIT License | |
| 508 | Insufficient routine privileges | You must give rights to use routines to the users/roles that correspond to applications. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-02-25 17:29 | MIT License | |
| 509 | Insufficient view privileges | You must give privileges to use views to the users/roles that correspond to applications | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-02-25 17:29 | MIT License | |
| 510 | Invalid character class | PostgreSQL regular expressions do not have character classes word and letter. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-11-04 12:50 | MIT License | |
| 511 | Invalid use of the case insensitive search modifier in regular expressions | Find regular expression patterns that use (?i) modifier in any other place than at the beginning of the pattern or (?-i) in any place of the pattern. Such use of the modifiers is not supported by PostgreSQL. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-11-04 16:06 | MIT License | |
| 512 | Invocation of a system-defined routine without providing any arguments | Find user-defined routines that contain an invocation of a system-defined function without providing any argument. The query considers all aggregate functions as well as some popular scalar functions. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2023-12-22 13:00 | MIT License | |
| 513 | Invocation of PL/pgSQL functions from the subqueries of derived tables | Find derived tables that subqueries invoke a PL/pgSQL function. Avoid context switch that is caused by the invocation of PL/pgSQL functions from the subqueries of derived tables. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2023-11-24 14:30 | MIT License | |
| 514 | Is does not return a boolean | Find user-defined SQL and PL/pgSQL non-trigger routines that do not return a truth value (for instance, returns an integer or does not return a value at all) although the name suggest that it should return a truth value (TRUE or FALSE). | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2023-01-06 14:25 | MIT License | |
| 515 | IS NULL check is probably not needed | Find CHECK constraints that refer only to mandatory columns but the Boolean expression has IS NULL condition. | Problem detection | INFORMATION_SCHEMA only | 2022-06-09 13:57 | MIT License | |
| 516 | JSON type instead of JSONB type | "In general, most applications should prefer to store JSON data as jsonb, unless there are quite specialized needs, such as legacy assumptions about ordering of object keys." (https://www.postgresql.org/docs/current/datatype-json.html) | Problem detection | INFORMATION_SCHEMA only | 2021-02-25 17:30 | MIT License | |
| 517 | LEAKPROOF routines that are perhaps not leakproof | You should not give wrong information to the database management system. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-11-05 14:12 | MIT License | |
| 518 | Length and char_lenfgth functions are used within the same expression | Find expressions that refer to both length and char_length functions. Make sure that the expression is correct. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2023-11-09 13:44 | MIT License | |
| 519 | Lifecycle not initiated | Find non-primary key and non-unique base table foreign key columns that name refers to the possibility that these are used to register references to a state classifier. The column must belong to a foreign key and does not have a default value. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2023-11-26 15:40 | MIT License | |
| 520 | LIKE instead of = | Find expressions that use LIKE predicate for precise comparison. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2023-11-09 10:43 | MIT License | |