| 301 | Potentially missing default values of base table columns | Find columns of base tables without a default value that are either Boolean columns that based on the name seem to implement a state machine or temporal columns that based on the name seem to keep registration or update time. These columns often have a default value. | Problem detection | INFORMATION_SCHEMA only | 2023-11-15 17:03 | MIT License | |
| 302 | Columns of derived tables that name has been given by the system | Find columns of derived tables (i.e., views and materialized views) where in the creation statement of the table the name of the column has not been specified, i.e., it is generated by the system. | Problem detection | system catalog base tables only | 2023-12-21 12:15 | MIT License | |
| 303 | Columns of derived tables that name has been given by the system (2) | Find columns of derived tables (i.e., views and materialized views) where in the creation statement of the table the name of the column has not been specified, i.e., it is generated by the system. | Problem detection | system catalog base tables only | 2023-12-21 12:17 | MIT License | |
| 304 | Names of the columns of derived tables that have been given by the system | Find columns of derived tables that name has been given by the system. The creators of the table should specify the name themselves to avoid ugly names and nasty surprises. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2022-11-15 16:48 | MIT License | |
| 305 | Names of columns that hold personal names but do not take into account cultural diversity | Find columns of tables (base tables, views, materialized views, foreign tables) that have the name first_name or last_name. Such column names do not take into account that different cultures use different personal name components and the number of possible components is more than two. If in a culture, the surname is presented before the given name, then the column names causes confusion. | Problem detection | system catalog base tables only | 2021-02-25 17:30 | MIT License | |
| 306 | Inconsistent naming of comment columns | Find columns of tables that start with the word comment or komment but end differently (excluding numbers). Return result only if there is more than one naming variant of such columns in the database. For instance, a column has the name "comment" but another "comments". | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2022-11-15 14:09 | MIT License | |
| 307 | Potentially a classifier is missing (based on field sizes) | Find columns that are not covered by a primary key, unique, and foreign key constraint but have a textual type with the maximum field size 3 or less. | General | INFORMATION_SCHEMA+system catalog base tables | 2021-03-10 13:07 | MIT License | |
| 308 | Potentially a classifier table is missing (based on field sizes) | Find columns that are not covered by a primary key, unique, and foreign key constraint but have a textual type with the maximum field size 3 or less and where the column name does not refer to names or comments. Return only data about these columns where there is no table with a similar name. Return data only about tables that could be referenced from more than one table. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-03-18 20:08 | MIT License | |
| 309 | Registration/modification time is not mandatory | Find columns that contain registration or modification time but are optional. | Problem detection | INFORMATION_SCHEMA only | 2023-11-26 16:51 | MIT License | |
| 310 | Perhaps duplicate check of empty strings (ver 2) | Find columns that have a check that prevents the empty string in the column but there is already another check on the column that enforces the constraint. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-12-20 11:30 | MIT License | |
| 311 | Duplicate check of empty strings | Find columns that have a check that prevents the empty string in the column but there is already another check on the column that enforces the constraint. If there is a constraint description!~'^[[:space:]]*$', then it covers the constraint description!='' and the latter becomes redundant. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-12-19 15:08 | MIT License | |
| 312 | Columns defined in a subtable | Find columns that have been added to a subtable, i.e., these were not defined in its immediate supertable. | General | INFORMATION_SCHEMA+system catalog base tables | 2021-01-02 03:22 | MIT License | |
| 313 | Duplicate NOT NULL constraints | Find columns that have NOT NULL constraint through a domain and also directly. Do not duplicate NOT NULL constraints in orde to avoid confusion and surprises. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-02-25 17:30 | MIT License | |
| 314 | Column name contains the table name | Find columns that have the same name as the table. The names may have different uppercase/lowercase characters. Make sure that the naming style is consistent. | General | INFORMATION_SCHEMA+system catalog base tables | 2023-01-06 12:38 | MIT License | |
| 315 | Column name is the same as the table name | Find columns that have the same name as the table. The names may have different uppercase/lowercase characters. Sometimes columns with such names are used as the key columns. Make sure that the naming style is consistent. | General | INFORMATION_SCHEMA+system catalog base tables | 2023-01-06 12:38 | MIT License | |
| 316 | Password is unique | Find columns that potentially contains passwords and that participate in a unique constraint or index | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2022-06-09 13:21 | MIT License | |
| 317 | Storing file content in the database | Find columns that probably store content of files in the database. | General | INFORMATION_SCHEMA only | 2021-03-27 17:02 | MIT License | |
| 318 | Columns with array or user-defined type | Find columns with an array or a user-defined type. Each columns should have the most appropriate data type. | General | INFORMATION_SCHEMA+system catalog base tables | 2020-11-19 17:04 | MIT License | |
| 319 | Precision of a timestamp or a time column is too big | Find columns with a timestamp or a time type where the precision (the permitted maximum number of fractional sections) is bigger than the precision in the default value of the column. | Problem detection | INFORMATION_SCHEMA only | 2023-11-02 17:29 | MIT License | |
| 320 | Columns with BYTEA or OID type | Find columns with BYTEA or OID type. These columns are potentially meant for storing large objects. Each columns should have the most appropriate data type. | General | INFORMATION_SCHEMA+system catalog base tables | 2020-11-19 17:00 | MIT License | |