Functions, aggregates, and user types
Query system_schema functions, aggregates, and types tables to get information about user-defined functions (UDFs), user-defined aggregates (UDAs), and user-defined types (UDTs).
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Show one user-defined function in the
system_schema.functionstable.EXPAND ON SELECT * FROM system_schema.functions LIMIT 1; EXPAND OFF;
The following output shows the first record using the cqlsh EXPAND ON option.
Now Expanded output is enabled
keyspace_name | function_name | argument_types | argument_names | body | called_on_null_input | language | return_type
---------------+---------------+----------------+----------------+------+----------------------+----------+-------------
(0 rows)
Disabled Expanded output.-
List the schema settings for one user-defined aggregate.
EXPAND ON SELECT * FROM system_schema.aggregates LIMIT 1; EXPAND OFF;
Now Expanded output is enabled
keyspace_name | aggregate_name | argument_types | final_func | initcond | return_type | state_func | state_type
---------------+----------------+----------------+------------+----------+-------------+------------+------------
(0 rows)
Disabled Expanded output.-
Show the schema settings for one user-defined type.
EXPAND ON SELECT * FROM system_schema.types LIMIT 1; EXPAND OFF;
Now Expanded output is enabled
@ Row 1
---------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
keyspace_name | dse_insights
type_name | insights_config_type
field_names | ['mode', 'upload_url', 'upload_interval_in_seconds', 'metric_sampling_interval_in_seconds', 'data_dir_max_size_in_mb', 'proxy_type', 'proxy_url', 'proxy_authentication', 'node_system_info_report_period', 'config_refresh_interval_in_seconds', 'filtering_rules']
field_types | ['text', 'text', 'int', 'int', 'int', 'text', 'text', 'text', 'text', 'int', 'frozen<set<frozen<insights_filters_rule_type>>>']
(1 rows)
Disabled Expanded output.