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SVCS_STREAM_SEGS

PDFRSS

Lists the relationship between streams and concurrent segments.

Note

System views with the prefix SVCS provide details about queries on both the main and concurrency scaling clusters. The views are similar to the tables with the prefix STL except that the STL tables provide information only for queries run on the main cluster.

SVCS_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.

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 svcs_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)