Redshift Research Project

System Table Tracker

System view information_schema.parameters version 1.0.62614 / 2024-02-02

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SELECT CAST(current_database() AS information_schema.sql_identifier) AS specific_catalog,
       CAST(n.nspname AS information_schema.sql_identifier) AS specific_schema,
       CAST((CAST(p.proname AS text) || CAST('_' AS text)) || CAST(CAST(p.oid AS varchar) AS text) AS information_schema.sql_identifier) AS specific_name,
       CAST(pos.n AS information_schema.cardinal_number) AS ordinal_position,
       CAST(CAST('IN' AS information_schema.character_data) AS information_schema.character_data) AS parameter_mode,
       CAST(CAST('NO' AS information_schema.character_data) AS information_schema.character_data) AS is_result,
       CAST(CAST('NO' AS information_schema.character_data) AS information_schema.character_data) AS as_locator,
       CAST(CASE
              WHEN (p.proargnames)[pos.n] = CAST('' AS text)
                THEN CAST(NULL AS text)
              ELSE (p.proargnames)[pos.n]
            END AS information_schema.sql_identifier) AS parameter_name,
       CAST(CASE
              WHEN t.typelem <> CAST(0 AS oid)
               AND t.typlen = -1
                THEN CAST('ARRAY' AS text)
              WHEN nt.nspname = CAST('pg_catalog' AS name)
                THEN format_type(t.oid,
                                 CAST(NULL AS integer))
              ELSE CAST('USER-DEFINED' AS text)
            END AS information_schema.character_data) AS data_type,
       CAST(CAST(NULL AS information_schema.cardinal_number) AS information_schema.cardinal_number) AS character_maximum_length,
       CAST(CAST(NULL AS information_schema.cardinal_number) AS information_schema.cardinal_number) AS character_octet_length,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS character_set_catalog,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS character_set_schema,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS character_set_name,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS collation_catalog,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS collation_schema,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS collation_name,
       CAST(CAST(NULL AS information_schema.cardinal_number) AS information_schema.cardinal_number) AS numeric_precision,
       CAST(CAST(NULL AS information_schema.cardinal_number) AS information_schema.cardinal_number) AS numeric_precision_radix,
       CAST(CAST(NULL AS information_schema.cardinal_number) AS information_schema.cardinal_number) AS numeric_scale,
       CAST(CAST(NULL AS information_schema.cardinal_number) AS information_schema.cardinal_number) AS datetime_precision,
       CAST(CAST(NULL AS information_schema.character_data) AS information_schema.character_data) AS interval_type,
       CAST(CAST(NULL AS information_schema.character_data) AS information_schema.character_data) AS interval_precision,
       CAST(current_database() AS information_schema.sql_identifier) AS udt_catalog,
       CAST(nt.nspname AS information_schema.sql_identifier) AS udt_schema,
       CAST(t.typname AS information_schema.sql_identifier) AS udt_name,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS scope_catalog,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS scope_schema,
       CAST(CAST(NULL AS information_schema.sql_identifier) AS information_schema.sql_identifier) AS scope_name,
       CAST(CAST(NULL AS information_schema.cardinal_number) AS information_schema.cardinal_number) AS maximum_cardinality,
       CAST(pos.n AS information_schema.sql_identifier) AS dtd_identifier
FROM pg_namespace AS n,
     pg_proc AS p,
     pg_type AS t,
     pg_namespace AS nt,
     pg_user AS u,
     information_schema._pg_keypositions() AS pos (n)
WHERE n.oid = p.pronamespace
  AND p.pronargs >= pos.n
  AND (p.proargtypes)[pos.n - 1] = t.oid
  AND t.typnamespace = nt.oid
  AND p.proowner = u.usesysid
  AND (u.usename = CAST("current_user"() AS name)
    OR has_function_privilege(p.oid,
                              CAST('EXECUTE' AS text)))

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