PostgreSQL Query Catalog

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Filter Queries

Found 997 queries.

  • All the queries about database objects contain a subcondition to exclude from the result information about the system catalog.
  • Although the statements use SQL constructs (common table expressions; NOT in subqueries) that could cause performance problems in case of large datasets it shouldn't be a problem in case of relatively small amount of data, which is in the system catalog of a database.
  • Statistics about the catalog content and project home in GitHub that has additional information.

# Name Goal Type ▲ Data source Last update License
481 Inconsistent time zone and precision usage in case of registering times Find as to whether different data types (with and without timezone) and precisions are used in case of registering times in different columns. Problem detection INFORMATION_SCHEMA only 2023-11-04 12:30 MIT License View
482 Inconsistent time zone and precision usage in case of registering timestamps Find as to whether different data types (with and without timezone) and precisions are used in case of registering timestamps in different columns. Problem detection INFORMATION_SCHEMA only 2023-11-04 12:28 MIT License View
483 Inconsistent use of casting syntax in routines Find as to whether PL/pgSQL routines and SQL routines that do not have SQL-standard body use different syntax for casting (cast function vs :: operator). Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-10-29 11:33 MIT License View
484 Inconsistent use of functions and procedures Find as to whether the database has both procedures as well as functions that do not return a value (i.e., return VOID). Such routines are generally used to modify data in the database. The support of procedures was added to PostgreSQL 11. Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-10-26 15:05 MIT License View
485 Inconsistent use of gratuitous context in the names of non-foreign key and non-candidate key columns Find the number of names on base table columns that are not a part of a candidate key and a foreign key and that contain the name of the table. Find the number of names on base table columns that are not a part of a candidate key and a foreign key and that do not contain the name of the table. Make sure that table name is used consistently in the column names. Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-10-26 20:25 MIT License View
486 Inconsistent use of length and char_length functions Find as to whether both functions length and char_length are used in the database. Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-11-10 14:38 MIT License View
487 Inconsistent use of older and newer join syntax in the subqueries of derived tables Find as to whether the subqueries of derived tables use both older join syntax (join condition in the where clause) and newer syntax (join condition in the from clause). Problem detection INFORMATION_SCHEMA+system catalog base tables 2024-01-24 13:26 MIT License View
488 Inconsistent use of plural and singular in column names in the context of a relationship (English version) Find foreign key constraints that cover one column in case of which the name of refererenced/referencing column is in plural and the name of referencing/refererenced column is in singular. Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-01-13 14:14 MIT License View
489 Inconsistent use of plural and singular in table names in the context of a relationship (English version) Find foreign key constraints in case of which the name of one of the tables is in plural and the name of another table is in singular. Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-01-13 13:41 MIT License View
490 Inconsistent use of plural and singular in table names in the context of a relationship (Estonian version) Find foreign key constraints in case of which the name of one of the tables is in plural and the name of another table is in singular. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-01-15 14:18 MIT License View
491 Inconsistent use of session_user and current_user functions Find as to whether both functions session_user and current_user are used in the database. Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-12-30 11:37 MIT License View
492 Incorrect characterization of a user-defined routine as an "immutable" routine Find immutable routines that contain SELECT statements from a database (including SELECT .. FOR UPDATE), INSERT, UPDATE, DELETE, or LOCK statement. The DBMS should get a correct background information about the behaviour of a routine. Immutable routines should not have side effects and should also not ask data from a database because it could change over time. Immutable routines cannot lock tables or its specific rows. Problem detection INFORMATION_SCHEMA+system catalog base tables 2021-11-05 14:08 MIT License View
493 Incorrect characterization of a user-defined routine as a "stable" routine Find stable routines that contain INSERT, UPDATE, DELETE, SELECT … FOR UPDATE, or LOCK statement. The DBMS should get a correct background information about the behaviour of a routine. Stable routines cannot modify data in a database, lock tables, or its specific rows. Problem detection INFORMATION_SCHEMA+system catalog base tables 2021-11-05 13:59 MIT License View
494 Incorrect check of NULLs Find the use of =NULL and <>NULL in case of table level check constraints, domain level check constraints, WHEN clauses of triggers, WHERE clauses of rules, subqueries of derived tables, and bodies of routines. Write correct code. In order to determine as to whether a value is missing or not one has to use the IS [NOT] NULL predicate. NULL is the marker in SQL that denotes a missing value. Although it is often called "NULL value", one cannot treat it as an ordinary value, i.e., use it in comparisons as a value. Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-11-12 12:10 MIT License View
495 Incorrect comparison operator Find PL/pgSQL routines that use comparison operators =< or =>. Problem detection INFORMATION_SCHEMA+system catalog base tables 2023-12-11 14:50 MIT License View
496 Incorrect data type (based on default values) Find columns of base tables that have the default value CURRENT_USER or SESSION_USER but the data type is CHAR or TEXT. Problem detection INFORMATION_SCHEMA only 2023-12-30 11:06 MIT License View
497 Incorrect field size (based on default values) Find columns of base tables that have the default value CURRENT_USER or SESSION_USER but the field size is not 63 (default maximum identifier length in PostgreSQL). Problem detection INFORMATION_SCHEMA only 2023-12-30 11:05 MIT License View
498 Incorrect password hash update Find row level update triggers that incorrectly implement update of password hash. It should not be that the new password hash is calculated based on the existing hash. Problem detection INFORMATION_SCHEMA+system catalog base tables 2021-02-25 17:29 MIT License View
499 Incorrect prefix of a constraint name or an index name If the name of an object has the prefix that refers to the type of the object (for instance, primary key constraint or foreign key constraint), then you should use references to the correct object type. Find prefixes of constraint names and index names that incorrectly refer to the type of the object. For instance, incorrect would be to use chk_ as the prefix of an index name or pk_ as the prefix of a check constraint name. Problem detection INFORMATION_SCHEMA+system catalog base tables 2024-12-28 10:48 MIT License View
500 Incorrect prevention of the empty string or strings that consist of only spaces in a field Find columns of base tables and foreign tables where the requirement that there should not be empty strings or strings that consist of only spaces in the column has been implemented incorrectly - by using the constraint trim(column_name) IS NOT NULL. PostgreSQL (differently from Oracle) does not replace the empty string with NULL. Empty string is a value but NULL is a special marker that denotes a missing value. Thus, in case of such constraint the DBMS checks a proposition '' IS NOT NULL. This is a true proposition and the DBMS does not prevent registration of such a row. Problem detection INFORMATION_SCHEMA only 2021-02-25 17:29 MIT License View