fix: longRunningTransactionsAgeInSeconds

- clock_timestamp will just return the current timestamp - what we actually want to know is the lowest timestamp of the xact_start column Signed-off-by: Roman Pertl <[email protected]>
prometheus-community · Nov 30, 2023 · 11c9972 · 11c9972
1 parent f5b613a
commit 11c9972
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/collector/pg_long_running_transactions.go b/collector/pg_long_running_transactions.go
@@ -52,7 +52,7 @@ var (
 	longRunningTransactionsQuery = `
 	SELECT
 		COUNT(*) as transactions,
-   		MAX(EXTRACT(EPOCH FROM clock_timestamp())) AS oldest_timestamp_seconds
+		MIN(EXTRACT(EPOCH FROM xact_start)) AS oldest_timestamp_seconds
     FROM pg_catalog.pg_stat_activity
     WHERE state is distinct from 'idle' AND query not like 'autovacuum:%'
 	`