Amazon Redshift will no longer support the creation of new Python UDFs starting November 1, 2025.
If you would like to use Python UDFs, create the UDFs prior to that date.
Existing Python UDFs will continue to function as normal. For more information, see the
blog post
PG_EXTERNAL_SCHEMA
Stores information about external schemas.
PG_EXTERNAL_SCHEMA is visible to all users. Superusers can see all rows; regular users can see only metadata to which they have access. For more information, see CREATE EXTERNAL SCHEMA.
Table columns
| Column name | Data type | Description |
|---|---|---|
| esoid | oid | External schema ID. |
| eskind | integer | Kind of external schema. |
| esdbname | text | External database name. |
| esoptions | text | External schema options. |
Example
The following example shows details for external schemas.
select esoid, nspname as schemaname, nspowner, esdbname as external_db, esoptions from pg_namespace a,pg_external_schema b where a.oid=b.esoid; esoid | schemaname | nspowner | external_db | esoptions -------+-----------------+----------+-------------+------------------------------------------------------------- 100134 | spectrum_schema | 100 | spectrum_db | {"IAM_ROLE":"arn:aws:iam::123456789012:role/mySpectrumRole"} 100135 | spectrum | 100 | spectrumdb | {"IAM_ROLE":"arn:aws:iam::123456789012:role/mySpectrumRole"} 100149 | external | 100 | external_db | {"IAM_ROLE":"arn:aws:iam::123456789012:role/mySpectrumRole"}