Fix panels' queries

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 0xgouda

grafana/postgres/v12/index-overview.json

@@ -431,7 +431,7 @@
           "orderByTime": "ASC",
           "policy": "default",
           "rawQuery": true,
-          "rawSql": "WITH last_fetch_time(time) AS (\n  SELECT time\n  FROM btree_bloat\n  WHERE time <= $__timeTo()\n  ORDER BY time DESC\n  LIMIT 1\n)\n\nSELECT\n  dbname AS \"Source Name\",\n  tag_data->>'tblname' AS \"Table Name\",\n  tag_data->>'idxname' AS \"Index Name\",\n  data->>'real_size' AS \"Index Size\",\n  data->>'bloat_pct' AS \"Estimated Bloat %\",\n  data->>'bloat_size' AS \"Estimated Bloat size\"\nFROM\n  btree_bloat\nWHERE time = (SELECT time FROM last_fetch_time)\nORDER BY (data->>'bloat_pct')::float8 DESC\nLIMIT $top\n",
+          "rawSql": "WITH last_fetch_time(time) AS (\n  SELECT time\n  FROM btree_bloat\n  WHERE time <= $__timeTo()\n  ORDER BY time DESC\n  LIMIT 1\n)\n\nSELECT\n  dbname AS \"Source Name\",\n  tag_data->>'tblname' AS \"Table Name\",\n  tag_data->>'idxname' AS \"Index Name\",\n  data->>'real_size' AS \"Index Size\",\n  data->>'bloat_pct' AS \"Estimated Bloat %\",\n  data->>'bloat_size' AS \"Estimated Bloat size\"\nFROM\n  btree_bloat\nWHERE time = (SELECT time FROM last_fetch_time)\n  AND dbname IN ($dbname)\nORDER BY (data->>'bloat_pct')::float8 DESC\nLIMIT $top\n",
           "refId": "A",
           "resultFormat": "table",
           "select": [

grafana/prometheus/v12/index-overview-prometheus.json

@@ -545,7 +545,7 @@
       "pluginVersion": "12.3.1",
       "targets": [
         {
-          "expr": "topk(10, pgwatch_btree_bloat_bloat_pct{dbname=\"$dbname\"})",
+          "expr": "topk(10, pgwatch_btree_bloat_bloat_pct{dbname=~\"$dbname\"})",
           "legendFormat": "{{dbname}}: {{schemaname}}.{{tblname}}.{{idxname}}",
           "range": true,
           "refId": "A"
@@ -647,7 +647,7 @@
       "targets": [
         {
           "editorMode": "code",
-          "expr": "topk(10, pgwatch_btree_bloat_bloat_size{dbname=\"$dbname\"})",
+          "expr": "topk(10, pgwatch_btree_bloat_bloat_size{dbname=~\"$dbname\"})",
           "legendFormat": "{{dbname}}: {{schemaname}}.{{tblname}}.{{idxname}}",
           "range": true,
           "refId": "A"