Reports the version number of the server as an integer.
At a glance
| Property | Value |
|---|---|
| Parameter | server_version_num |
| Category | Preset Options |
| Default | (see documentation) |
| Value type | integer |
| Change scope | Per-session (SET) |
| Available in | PostgreSQL 12, 13, 14, 15, 16, 17, 18, 19 (added in 12) |
What it does
Reports the version number of the server as an integer. It is determined by the value of PG_VERSION_NUM when building the server.
(Description quoted from the official PostgreSQL documentation.)
How to apply a change
Can be set per session with SET, per role/database with ALTER ROLE/DATABASE ... SET, or globally in postgresql.conf.
Inspect the current value and source with SHOW server_version_num; or SELECT name, setting, unit, context, source FROM pg_settings WHERE name = 'server_version_num';.
Tuning guidance
This is a preset, read-only parameter: it reports a value fixed when PostgreSQL was built or the cluster was initialized, and cannot be tuned at runtime. Read it to verify the server’s build or cluster configuration (for example when matching a replica or debugging a compatibility issue); there is no setting to adjust.