STL_STREAM_SEGS - Amazon Redshift
Table columnsSample queries
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

STL_STREAM_SEGS

Lists the relationship between streams and concurrent segments.

Streams in this context are Amazon Redshift streams. This system view doesn't pertain to Streaming ingestion to a materialized view.

STL_STREAM_SEGS is visible to all users. Superusers can see all rows; regular users can see only their own data. For more information, see Visibility of data in system tables and views.

Note

STL_STREAM_SEGS only contains queries run on main provisioned clusters. It doesn't contain queries run on concurrency scaling clusters or on serverless namespaces. To access explain plans for queries run on both main clusters, concurrency scaling clusters, and serverless namespaces, we recommend that you use the SYS monitoring view SYS_QUERY_DETAIL . The data in the SYS monitoring view is formatted to be easier to use and understand.

Table columns

Column name Data type Description
userid integer ID of the user who generated the entry.
query integer Query ID. The query column can be used to join other system tables and views.
stream integer The set of concurrent segments of a query.
segment integer Number that identifies the query segment.

Sample queries

To view the relationship between streams and concurrent segments for the most recent query, type the following query: 

select *
from stl_stream_segs
where query = pg_last_query_id();

 query | stream | segment
-------+--------+---------
    10 |      1 |       2
    10 |      0 |       0
    10 |      2 |       4
    10 |      1 |       3
    10 |      0 |       1
(5 rows)