Add Auto option to $online_interval variable.

The `Auto` option will contain a value identical to the current
time range, so we can partially avoid the imprecision of `$__timeGroup()`

Author: 0xgouda

grafana/postgres/v12/0-health-check.json

@@ -4987,7 +4987,7 @@
       "description": "Percentage of total query execution time spent in JIT. (requires stat_statements_jit metric)",
       "fieldConfig": {
         "defaults": {
-          "decimals": 1,
+          "decimals": 5,
           "mappings": [
             {
               "options": {
@@ -5077,7 +5077,7 @@
           "orderByTime": "ASC",
           "policy": "default",
           "rawQuery": true,
-          "rawSql": "select \n    $__timeGroup(time, $__interval),\n    (sum(total_jit - total_jit_lag) / sum(total_time - total_time_lag)) * 100 as pct\nfrom\n(\n    select\n        time,\n        (data->>'total_jit_time')::float8 as total_jit, lag((data->>'total_jit_time')::float8) over w as total_jit_lag,\n        (data->>'total_time')::float8 as total_time, lag((data->>'total_time')::float8) over w as total_time_lag\n    from\n        stat_statements_jit\n    where \n        dbname = '$dbname' and $__timeFilter(time)\n    window w as (order by time)\n)\nwhere total_time > total_time_lag\ngroup by 1\norder by 1 desc\nlimit 1",
+          "rawSql": "select \n    $__timeGroup(time, $online_interval),\n    (sum(total_jit - total_jit_lag) / sum(total_time - total_time_lag)) * 100 as pct\nfrom\n(\n    select\n        time,\n        (data->>'total_jit_time')::float8 as total_jit, lag((data->>'total_jit_time')::float8) over w as total_jit_lag,\n        (data->>'total_time')::float8 as total_time, lag((data->>'total_time')::float8) over w as total_time_lag\n    from\n        stat_statements_jit\n    where \n        dbname = '$dbname' and $__timeFilter(time)\n    window w as (order by time)\n)\nwhere total_time > total_time_lag\ngroup by 1\norder by 1 desc\nlimit 1",
           "refId": "A",
           "resultFormat": "time_series",
           "select": [
@@ -5205,14 +5205,14 @@
         "type": "query"
       },
       {
-        "auto": false,
-        "auto_count": 30,
+        "auto": true,
+        "auto_count": 1,
         "auto_min": "10s",
         "current": {
-          "text": "10m",
-          "value": "10m"
+          "text": "$__auto",
+          "value": "$__auto"
         },
-        "label": "Max. age for 'online' metrics",
+        "hide": 3,
         "name": "online_interval",
         "options": [
           {
@@ -5222,23 +5222,48 @@
           },
           {
             "selected": false,
-            "text": "3m",
-            "value": "3m"
+            "text": "10m",
+            "value": "10m"
           },
           {
             "selected": false,
-            "text": "5m",
-            "value": "5m"
+            "text": "30m",
+            "value": "30m"
           },
           {
-            "selected": true,
-            "text": "10m",
-            "value": "10m"
+            "selected": false,
+            "text": "1h",
+            "value": "1h"
+          },
+          {
+            "selected": false,
+            "text": "6h",
+            "value": "6h"
+          },
+          {
+            "selected": false,
+            "text": "12h",
+            "value": "12h"
+          },
+          {
+            "selected": false,
+            "text": "1d",
+            "value": "1d"
+          },
+          {
+            "selected": false,
+            "text": "7d",
+            "value": "7d"
+          },
+          {
+            "selected": false,
+            "text": "14d",
+            "value": "14d"
           },
           {
             "selected": false,
-            "text": "15m",
-            "value": "15m"
+            "text": "30d",
+            "value": "30d"
           }
         ],
         "query": "1m,3m,5m,10m,15m",