Find parameters of user-defined routines that type is an array type, xml, json, or jsonb type. Make sure that the parameter name matches the type (perhaps should be in plural).
Notes
The query does not consider extension routines.
Type
General (Overview of some aspect of the database.)
WITH params AS (SELECT
specific_schema AS routine_schema,
regexp_replace(specific_name,'_[0-9]*$','') AS routine_name,
pg_get_function_identity_arguments(translate(substring(specific_name,'_[0-9]+$'),'_','')::int::oid) AS parameters,
parameter_name,
ordinal_position,
data_type
FROM
information_schema.parameters
WHERE specific_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 NOT EXISTS (SELECT 1
FROM pg_catalog.pg_depend d inner join pg_catalog.pg_proc pc ON d.objid=pc.oid
WHERE EXISTS (SELECT 1 FROM pg_catalog.pg_extension e WHERE d.refobjid=e.oid) AND
pc.proname || '_' || pc.oid = parameters.specific_name))
SELECT routine_schema, routine_name, parameters, parameter_name, ordinal_position, data_type
FROM params
WHERE data_type~*'(array|json|xml)'
ORDER BY routine_schema, routine_name, parameters, data_type;
Collections
This query belongs to the following collections:
Name
Description
Find problems by overview
Queries that results point to different aspects of database that might have problems. A human reviewer has to decide based on the results as to whether there are problems or not .
Categories
This query is classified under the following categories:
Name
Description
Data types
Queries of this category provide information about the data types and their usage.
Naming
Queries of this category provide information about the style of naming.