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Wiki / Statistics & Metrics

pg_stat_database.numbackends

Number of backends currently connected to this database, or NULL for shared objects. This is the only column in this view that returns a value reflecting current state; all other columns return the accumulated values since the last reset.

Reading PG 18·Select a recorded version

View
pg_stat_database
Field
numbackends
SQL type
integer
Units named in the field definition
Not specified
Reset observation
Time at which these statistics were last reset
documented
true
field
numbackends
manual path
/docs/18/monitoring-stats.html
signature
SELECT numbackends FROM pg_catalog.pg_stat_database;
source only
false
sql type
integer
units mentioned
Unknown
view
pg_stat_database

Definition PG 18

Number of backends currently connected to this database, or NULL for shared objects. This is the only column in this view that returns a value reflecting current state; all other columns return the accumulated values since the last reset.

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Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

Text language: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f