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[-] fix sql of Shared Buffers hit pct panel #1058

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Merged
merged 1 commit into from
Dec 3, 2025
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[-] fix sql of Shared Buffers hit pct panel #1058

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2 changes: 1 addition & 1 deletion grafana/postgres/v12/0-health-check.json
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Original file line number Diff line number Diff line change
Expand Up @@ -1020,7 +1020,7 @@
"orderByTime": "ASC",
"policy": "default",
"rawQuery": true,
"rawSql": "select\n time,\n ((hit-hit_lag)::numeric / ((hit-hit_lag) + (read-read_lag)))*100 as \"Shared buffers hit ratio\"\nfrom (\n select \n (data->>'blks_hit')::int8 as hit, lag((data->>'blks_hit')::int8) over w as hit_lag,\n (data->>'blks_read')::int8 as read, lag((data->>'blks_read')::int8) over w as read_lag,\n (data->>'xact_rollback')::int8 as roll, lag((data->>'xact_rollback')::int8) over w as roll_lag,\n (data->>'xact_commit')::int8 as comm, lag((data->>'xact_commit')::int8) over w as comm_lag,\n time\n from db_stats\n where dbname = '$dbname' and $__timeFilter(time)\n window w as (order by time)\n) x\nwhere hit > hit_lag or read > read_lag\norder by 1",
"rawSql": "select\n time,\n ((hit-hit_lag)::numeric / ((hit-hit_lag) + (read-read_lag)))*100 as \"Shared buffers hit ratio\"\nfrom (\n select \n (data->>'blks_hit')::int8 as hit, lag((data->>'blks_hit')::int8) over w as hit_lag,\n (data->>'blks_read')::int8 as read, lag((data->>'blks_read')::int8) over w as read_lag,\n time\n from db_stats\n where dbname = '$dbname' and $__timeFilter(time)\n window w as (order by time)\n) x\nwhere hit > hit_lag or read > read_lag\norder by 1",
"refId": "A",
"resultFormat": "time_series",
"select": [
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