PostgreSQL

specific_catalog

sql_identifier

Name of the database containing the function (always the current database)

specific_schema

sql_identifier

Name of the schema containing the function

specific_name

sql_identifier

The “[.quote]#specific name”# of the function. See Section 37.40 for more information.

ordinal_position

cardinal_number

Ordinal position of the parameter in the argument list of the function (count starts at 1)

parameter_mode

character_data

IN for input parameter, OUT for output parameter, and INOUT for input/output parameter.

is_result

yes_or_no

Applies to a feature not available in PostgreSQL

as_locator

yes_or_no

Applies to a feature not available in PostgreSQL

parameter_name

sql_identifier

Name of the parameter, or null if the parameter has no name

data_type

character_data

Data type of the parameter, if it is a built-in type, or ARRAY if it is some array (in that case, see the view element_types), else USER-DEFINED (in that case, the type is identified in udt_name and associated columns).

character_maximum_length

cardinal_number

Always null, since this information is not applied to parameter data types in PostgreSQL

character_octet_length

cardinal_number

Always null, since this information is not applied to parameter data types in PostgreSQL

character_set_catalog

sql_identifier

Applies to a feature not available in PostgreSQL

character_set_schema

sql_identifier

Applies to a feature not available in PostgreSQL

character_set_name

sql_identifier

Applies to a feature not available in PostgreSQL

collation_catalog

sql_identifier

Always null, since this information is not applied to parameter data types in PostgreSQL

collation_schema

sql_identifier

Always null, since this information is not applied to parameter data types in PostgreSQL

collation_name

sql_identifier

Always null, since this information is not applied to parameter data types in PostgreSQL

numeric_precision

cardinal_number

Always null, since this information is not applied to parameter data types in PostgreSQL

numeric_precision_radix

cardinal_number

Always null, since this information is not applied to parameter data types in PostgreSQL

numeric_scale

cardinal_number

Always null, since this information is not applied to parameter data types in PostgreSQL

datetime_precision

cardinal_number

Always null, since this information is not applied to parameter data types in PostgreSQL

interval_type

character_data

Always null, since this information is not applied to parameter data types in PostgreSQL

interval_precision

cardinal_number

Always null, since this information is not applied to parameter data types in PostgreSQL

udt_catalog

sql_identifier

Name of the database that the data type of the parameter is defined in (always the current database)

udt_schema

sql_identifier

Name of the schema that the data type of the parameter is defined in

udt_name

sql_identifier

Name of the data type of the parameter

scope_catalog

sql_identifier

Applies to a feature not available in PostgreSQL

scope_schema

sql_identifier

Applies to a feature not available in PostgreSQL

scope_name

sql_identifier

Applies to a feature not available in PostgreSQL

maximum_cardinality

cardinal_number

Always null, because arrays always have unlimited maximum cardinality in PostgreSQL

dtd_identifier

sql_identifier

An identifier of the data type descriptor of the parameter, unique among the data type descriptors pertaining to the function. This is mainly useful for joining with other instances of such identifiers. (The specific format of the identifier is not defined and not guaranteed to remain the same in future versions.)

parameter_default

character_data

The default expression of the parameter, or null if none or if the function is not owned by a currently enabled role.