Goal This query identifies automatically updatable views that lack the WITH CHECK OPTION clause. Without this constraint, it is possible to perform INSERT or UPDATE operations through the view that create rows which do not satisfy the view's defining predicate (the WHERE clause). This results in "phantom" modifications where the new or updated data is successfully committed to the base table but is immediately excluded from the view's result set. Enforcing WITH CHECK OPTION ensures that all data modifications performed through the view remain visible within the view.
Notes The query excludes views that are inherently not updatable (e.g., have a join or grouping) but have a DO INSTEAD rule.
Type Problem detection (Each row in the result could represent a flaw in the design)
Reliability High (Few or no false-positive results)
License MIT (opens in new tab)
Fixing Suggestion Recreate the view with the WITH CHECK OPTION constraint.
Data Source INFORMATION_SCHEMA only
SQL Query 
SELECT table_schema AS view_schema, table_name AS view_name, is_updatable, is_insertable_into
FROM Information_schema.views
WHERE (is_insertable_into='YES' OR is_updatable='YES') AND check_option='NONE'
AND table_schema NOT IN (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL)
AND (view_definition!~*'(JOIN|DISTINCT|GROUP|UNION|INTERSECT|EXCEPT|HAVING|WHERE.*[_[:alnum:]]+\.[_[:alnum:]]+[[:space:]]*=[[:space:]]*[_[:alnum:]]+\.[_[:alnum:]]+|LIMIT|OFFSET|FETCH[[:space:]]FIRST)'
AND view_definition!~*'(sum|count|avg|min|max|over)[[:space:]]{0,1}[(]')
ORDER BY table_schema, table_name;

SQL statements that help generate fixes for the identified problem.

Fix Action #1
SELECT format('CREATE OR REPLACE VIEW %1$I.%2$I WITH(security_barrier) AS %3$s WITH CHECK OPTION;', table_schema, table_name, rtrim(view_definition, ';')) AS statements
FROM Information_schema.views
WHERE (is_insertable_into='YES' OR is_updatable='YES') AND check_option='NONE'
AND table_schema NOT IN (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL)
AND (view_definition!~*'(JOIN|DISTINCT|GROUP|UNION|INTERSECT|EXCEPT|HAVING|WHERE.*[_[:alnum:]]+\.[_[:alnum:]]+[[:space:]]*=[[:space:]]*[_[:alnum:]]+\.[_[:alnum:]]+|LIMIT|OFFSET|FETCH[[:space:]]FIRST)'
AND view_definition!~*'(sum|count|avg|min|max|over)[[:space:]]{0,1}[(]')
ORDER BY table_schema, table_name;

Recreate the view with the WITH CHECK OPTION constraint.

SQL Query to Generate FixDescription
SELECT format('CREATE OR REPLACE VIEW %1$I.%2$I WITH(security_barrier) AS %3$s WITH CHECK OPTION;', table_schema, table_name, rtrim(view_definition, ';')) AS statements
FROM Information_schema.views
WHERE (is_insertable_into='YES' OR is_updatable='YES') AND check_option='NONE'
AND table_schema NOT IN (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL)
AND (view_definition!~*'(JOIN|DISTINCT|GROUP|UNION|INTERSECT|EXCEPT|HAVING|WHERE.*[_[:alnum:]]+\.[_[:alnum:]]+[[:space:]]*=[[:space:]]*[_[:alnum:]]+\.[_[:alnum:]]+|LIMIT|OFFSET|FETCH[[:space:]]FIRST)'
AND view_definition!~*'(sum|count|avg|min|max|over)[[:space:]]{0,1}[(]')
ORDER BY table_schema, table_name;
Recreate the view with the WITH CHECK OPTION constraint.

Collections

This query belongs to the following collections:

Find problems automatically

Queries, that results point to problems in the database. Each query in the collection produces an initial assessment. However, a human reviewer has the final say as to whether there is a problem or not .

NameDescription
Find problems automaticallyQueries, that results point to problems in the database. Each query in the collection produces an initial assessment. However, a human reviewer has the final say as to whether there is a problem or not .

Categories

This query is classified under the following categories:

Derived tables

Queries of this category provide information about the derived tables (views, materialized views), which are used to implement virtual data layer.

Security

Queries of this category provide information about the security measures.

NameDescription
Derived tablesQueries of this category provide information about the derived tables (views, materialized views), which are used to implement virtual data layer.
SecurityQueries of this category provide information about the security measures.