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pg_stat_{ssl,gssapi}: Show only processes with connections 

It is pointless to show in those views auxiliary processes that don't
open network connections.

A small incompatibility is that anybody joining pg_stat_activity and
pg_stat_ssl/pg_stat_gssapi will have to use a left join if they want to
see such auxiliary processes.

Author: Euler Taveira
Discussion: https://postgr.es/m/20190904151535.GA29108@alvherre.pgsql
This commit is contained in:
Alvaro Herrera 2019-11-12 17:19:41 -03:00
parent 1f55ebae27
commit 5c46e7d82e
3 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/backend/catalog/system_views.sql
View File

@ -826,7 +826,8 @@ CREATE VIEW pg_stat_ssl AS
S.ssl_client_dn AS client_dn,
S.ssl_client_serial AS client_serial,
S.ssl_issuer_dn AS issuer_dn
FROM pg_stat_get_activity(NULL) AS S;
FROM pg_stat_get_activity(NULL) AS S
WHERE S.client_port IS NOT NULL;
CREATE VIEW pg_stat_gssapi AS
SELECT
@ -834,7 +835,8 @@ CREATE VIEW pg_stat_gssapi AS
S.gss_auth AS gss_authenticated,
S.gss_princ AS principal,
S.gss_enc AS encrypted
FROM pg_stat_get_activity(NULL) AS S;
FROM pg_stat_get_activity(NULL) AS S
WHERE S.client_port IS NOT NULL;
CREATE VIEW pg_replication_slots AS
SELECT

2
src/include/catalog/catversion.h
View File

@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201910251
#define CATALOG_VERSION_NO 201911121
#endif

6
src/test/regress/expected/rules.out
View File

@ -1845,7 +1845,8 @@ pg_stat_gssapi| SELECT s.pid,
s.gss_auth AS gss_authenticated,
s.gss_princ AS principal,
s.gss_enc AS encrypted
FROM pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, sslcompression, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, gss_auth, gss_princ, gss_enc);
FROM pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, sslcompression, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, gss_auth, gss_princ, gss_enc)
WHERE (s.client_port IS NOT NULL);
pg_stat_progress_cluster| SELECT s.pid,
s.datid,
d.datname,
@ -1964,7 +1965,8 @@ pg_stat_ssl| SELECT s.pid,
s.ssl_client_dn AS client_dn,
s.ssl_client_serial AS client_serial,
s.ssl_issuer_dn AS issuer_dn
FROM pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, sslcompression, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, gss_auth, gss_princ, gss_enc);
FROM pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, sslcompression, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, gss_auth, gss_princ, gss_enc)
WHERE (s.client_port IS NOT NULL);
pg_stat_subscription| SELECT su.oid AS subid,
su.subname,
st.pid,