Wiki / Statistics & Metrics / pg_stat_ssl
pg_stat_ssl.client_serial
Serial number of the client certificate, or NULL if no client certificate was supplied or if SSL is not in use on this connection. The combination of certificate serial number and certificate issuer uniquely identifies a certificate (unless the issu…
Reading PostgreSQL 18.6.
Description
Serial number of the client certificate, or NULL if no client certificate was supplied or if SSL is not in use on this connection. The combination of certificate serial number and certificate issuer uniquely identifies a certificate (unless the issuer erroneously reuses serial numbers).
- View
- pg_stat_ssl
- Field
- client_serial
- SQL type
- numeric
- Units named in the field definition
- Not specified
- Reset observation
- No stats_reset field is documented for this view
Usage
SELECT client_serial FROM pg_catalog.pg_stat_ssl;View semantics
The pg_stat_ssl view will contain one row per backend or WAL sender process, showing statistics about SSL usage on this connection. It can be joined to pg_stat_activity or pg_stat_replication on the pid column to get more details about the connection.
Collection and reset context
Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name.
Inspect this field
Example query; no execution result or measured value is asserted.
SELECT client_serial FROM pg_catalog.pg_stat_ssl;Related entries
Documentation and source
Source build
- Version
- 18.6
- Build
- https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2
- Source fingerprint
555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f
Compare versions
PostgreSQL 11 → 12: added.
--- PostgreSQL 11
+++ PostgreSQL 12
@@ -1 +1,6 @@
-Not recorded in this version
+{
+ "field": "client_serial",
+ "sql_type": "numeric",
+ "units_mentioned": [],
+ "view": "pg_stat_ssl"
+}Compares recorded interfaces and attributes. Source fingerprints and build metadata are excluded; an absent sample is not proof of the introduction or removal release.
Related entries
Export JSON · Back to Statistics & Metrics · Recorded in PostgreSQL 12 through 20; the first sample is not necessarily its introduction.