PostgreSQL Query Catalog

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Filter Queries

Found 1041 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
561 The SQL-language routines with the body that is string literal Find SQL-language routines that have the body that is string literal, i.e., the body is not SQL-standard function body. Routines with a SQL-standard body are permitted starting from PostgreSQL 14. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
562 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 2025-11-07 10:11 MIT License View
563 STATEMENT level triggers that refer to the values of row variables NEW or OLD Find STATEMENT level triggers that refer to the values of row variables NEW or OLD. NEW and OLD are special variables that can only be used in row-level trigger procedures. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
564 Number of using views Find statistics about how many base tables have how many derived tables that use these tables. Sofware measure INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
565 Number of used tables Find statistics about how many derived tables have how many different underlying tables. Sofware measure INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
566 Subqueries of derived tables with LIMIT/FETCH/DISTINCT ON without ORDER BY Find subqueries of derived tables (views, materialized views) with the LIMIT/FETCH clause or with DISTINCT ON construct but without the ORDER BY clause. These constructs require sorting to produce a meaningful result. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
567 Potentially missing sequence generators (based on column names and types) Find surrogate key columns that do not have an associated sequence generator. Surrogate key values must be generated by using the system (the sequence generator mechanism in case of PostgreSQL). If there are no sequence generators, then there is a question as to whether there are no surrogate keys in the database at all (could be possible and OK) or (more probable) developers have forgotten to implement the generation of surrogate keys. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
568 Surrogate key columns that do not follow the naming style Find surrogate key columns that name does not end with "id_" or start with "id_". Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
569 Surrogate key columns Find surrogate keys. Surrogate key is a key that consist of one column, which has an integer type. The key has been declared by using PRIMARY KEY or UNIQUE constraint. The column is associated with a sequence generator (either external or internal, i.e., created by the system automatically because the column has been declared as an identity column). The column does not participate in any foreign key. General INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
570 The generator of surrogate key values can output the same value more than once Find surrogate keys where the generator can output the same value more than once. Key values must be unique, i.e., at some point the generator will prevent adding new rows to the table. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
571 All system-defined TOAST-able types Find system-defined types in case of which the system can use the TOAST technique, i.e., save the value in a compressed form or store it in a automatically-created secondary table, which is hidden from the database user (TOAST table). General system catalog base tables only 2025-11-07 10:11 MIT License View
572 Perhaps an overcomplicated constraint expression that compares the result of a Boolean expression with a Boolean value Find table and domain CHECK constraints that compare the result of a Boolean expression with a Boolean value. If you can choose between two logically equivalent Boolean expressions choose the more simple expression. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
573 CHAR or VARCHAR columns have a default value that length is longer from the character maximum length of the column Find table columns with CHAR or VARCHAR type that have a default value that length is longer from the character maximum length of the column. Choose a suitable data type, field size, and default value. If the value is longer, then it is impossible to register it in a field, i.e., it makes registration of data impossible (except if the excessive characters are spaces). Problem detection INFORMATION_SCHEMA only 2025-11-07 10:11 MIT License View
574 Inconsistency between the type and the default value of a column (date and timestamp values) Find table columns with timestamp/date types that data type and dynamically found default value have a different type. Problem detection INFORMATION_SCHEMA only 2025-11-07 10:11 MIT License View
575 Inconsistency between the type and the default value of a column (time values) Find table columns with time types, which data type and dynamically found default value have a different type. Problem detection INFORMATION_SCHEMA only 2025-11-07 10:11 MIT License View
576 Too generic names (table constraints) Find table constraints (constraints that are associated directly with the table) that have too generic names like "key" or the name contain too generic words like "data" (all constraints restrict data in the table), or the name is an abbreviation of a constraint type name. Problem detection system catalog base tables only 2025-11-07 10:11 MIT License View
577 A non-parameterized table function instead of a view Find table functions that do not have any parameters. Prefer simpler and more portable solutions. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
578 Table functions with OFFSET Find table functions that use OFFSET. OFFSET method is a common way for implementing pagination. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
579 A table has the same name as a routine Find table names that are the same as some routine name. Use different names to avoid confusion. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View
580 Grantable table privileges Find table privileges that the carrier of the privilege can in turn grant to others, i.e., the privileges have been given WITH GRANT OPTION. The number of privileges that can be passed on should be as small as possible. Problem detection INFORMATION_SCHEMA+system catalog base tables 2025-11-07 10:11 MIT License View