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0xgoudapashagolub
0xgouda
and
pashagolub
authored
[-] fix panel queries in Table Details dashboard (#1150)
* Fix sql queries * fix sql query for `Last VACUUM/ANALYZE` panels * Improve sql queries for panels that use `lag()` * remove comments from queries Co-authored-by: Pavlo Golub <pavlo.golub@gmail.com> --------- Co-authored-by: Pavlo Golub <pavlo.golub@gmail.com>
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Lines changed: 18 additions & 18 deletions

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‎grafana/postgres/v12/5-table-details.json‎

Lines changed: 18 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -18,7 +18,7 @@
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"editable": true,
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"fiscalYearStartMonth": 0,
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"graphTooltip": 0,
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"id": 30,
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"id": 9,
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"links": [],
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"panels": [
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{
@@ -120,7 +120,7 @@
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"sort": "desc"
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}
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},
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"pluginVersion": "12.1.0",
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"pluginVersion": "12.3.1",
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"targets": [
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{
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"alias": "total_relation_size",
@@ -311,7 +311,7 @@
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"sort": "desc"
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}
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},
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"pluginVersion": "12.1.0",
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"pluginVersion": "12.3.1",
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"targets": [
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{
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"alias": "seq_scans",
@@ -340,7 +340,7 @@
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"orderByTime": "ASC",
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"policy": "default",
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"rawQuery": true,
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"rawSql": "SELECT\n $__timeGroup(time, $agg_interval),\n avg( ((seq_scan-seq_scan_lag)::numeric*3600) / extract(epoch from time - time_lag) ) as seq_scan,\n avg( ((idx_scan-idx_scan_lag)::numeric*3600) / extract(epoch from time - time_lag) ) as idx_scan\nFROM ( \n SELECT\n (data->>'seq_scan')::int8 as seq_scan, lag((data->>'seq_scan')::int8) over w as seq_scan_lag,\n (data->>'idx_scan')::int8 as idx_scan, lag((data->>'idx_scan')::int8) over w as idx_scan_lag,\n time, lag(time) over w as time_lag \n FROM\n table_stats\n WHERE\n $__timeFilter(time) AND dbname = '$dbname'\n AND tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\n WINDOW w as (order by time)\n) x\nWHERE seq_scan >= seq_scan_lag and time > time_lag\nGROUP BY 1\nORDER BY 1",
343+
"rawSql": "WITH last_out_of_range_row_time(time) AS (\n SELECT time \n FROM table_stats\n WHERE dbname = '$dbname' AND time < $__timeFrom()::timestamptz\n ORDER BY time DESC\n LIMIT 1\n)\n\nSELECT\n $__timeGroup(time, $agg_interval),\n avg( ((seq_scan-seq_scan_lag)::numeric*3600) / extract(epoch from time - time_lag) ) as seq_scan,\n avg( ((idx_scan-idx_scan_lag)::numeric*3600) / extract(epoch from time - time_lag) ) as idx_scan\nFROM ( \n SELECT\n (data->>'seq_scan')::int8 as seq_scan, lag((data->>'seq_scan')::int8) over w as seq_scan_lag,\n (data->>'idx_scan')::int8 as idx_scan, lag((data->>'idx_scan')::int8) over w as idx_scan_lag,\n time, lag(time) over w as time_lag \n FROM\n table_stats\n WHERE \n time <= $__timeTo()::timestamptz AND time >= (SELECT time FROM last_out_of_range_row_time)\n AND dbname = '$dbname' AND tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\n WINDOW w as (order by time)\n) x\nWHERE seq_scan >= seq_scan_lag and time > time_lag\nGROUP BY 1\nORDER BY 1",
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"refId": "A",
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"resultFormat": "time_series",
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"select": [
@@ -476,7 +476,7 @@
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"sort": "desc"
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}
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},
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"pluginVersion": "12.1.0",
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"pluginVersion": "12.3.1",
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"targets": [
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{
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"alias": "INS",
@@ -505,7 +505,7 @@
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"orderByTime": "ASC",
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"policy": "default",
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"rawQuery": true,
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"rawSql": "select\n $__timeGroup(time, $agg_interval),\n avg((ins-ins_lag) * 3600 / extract(epoch from time - time_lag)) as \"INSERT\",\n avg((upd-upd_lag) * 3600 / extract(epoch from time - time_lag)) as \"UPDATE\",\n avg((del-del_lag) * 3600 / extract(epoch from time - time_lag)) as \"DELETE\"\nfrom (\n select \n (data->>'n_tup_ins')::int8 as ins, lag((data->>'n_tup_ins')::int8) over w as ins_lag,\n (data->>'n_tup_upd')::int8 as upd, lag((data->>'n_tup_upd')::int8) over w as upd_lag,\n (data->>'n_tup_del')::int8 as del, lag((data->>'n_tup_del')::int8) over w as del_lag,\n time, lag(time) over w as time_lag\n from table_stats\n where dbname = '$dbname' and $__timeFilter(time)\n and tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\n window w as (order by time)\n\n) x\nwhere ins >= ins_lag and time > time_lag\ngroup by 1\norder by 1",
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"rawSql": "WITH last_out_of_range_row_time(time) AS (\n SELECT time \n FROM table_stats\n WHERE dbname = '$dbname' AND time < $__timeFrom()::timestamptz\n ORDER BY time DESC\n LIMIT 1\n)\n\nselect\n $__timeGroup(time, $agg_interval),\n avg((ins-ins_lag) * 3600 / extract(epoch from time - time_lag)) as \"INSERT\",\n avg((upd-upd_lag) * 3600 / extract(epoch from time - time_lag)) as \"UPDATE\",\n avg((del-del_lag) * 3600 / extract(epoch from time - time_lag)) as \"DELETE\"\nfrom (\n select \n (data->>'n_tup_ins')::int8 as ins, lag((data->>'n_tup_ins')::int8) over w as ins_lag,\n (data->>'n_tup_upd')::int8 as upd, lag((data->>'n_tup_upd')::int8) over w as upd_lag,\n (data->>'n_tup_del')::int8 as del, lag((data->>'n_tup_del')::int8) over w as del_lag,\n time, lag(time) over w as time_lag\n from table_stats\n where \n time <= $__timeTo()::timestamptz AND time >= (SELECT time FROM last_out_of_range_row_time)\n AND dbname = '$dbname' and tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\n window w as (order by time)\n) x\nwhere ins >= ins_lag and time > time_lag\ngroup by 1\norder by 1",
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"refId": "A",
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"resultFormat": "time_series",
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"select": [
@@ -641,7 +641,7 @@
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"sort": "desc"
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}
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},
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"pluginVersion": "12.1.0",
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"pluginVersion": "12.3.1",
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"targets": [
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{
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"alias": "Heap",
@@ -671,7 +671,7 @@
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"policy": "default",
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"query": "SELECT non_negative_derivative(mean(\"heap_blks_hit\"), 10s) / (non_negative_derivative(mean(\"heap_blks_hit\"), 10s) + non_negative_derivative(mean(\"heap_blks_read\"), 10s)) * 100 FROM \"table_io_stats\" WHERE \"dbname\" =~ /^$dbname$/ AND \"table_full_name\" =~ /^$table_full_name$/ AND $timeFilter GROUP BY time($__interval) fill(none)",
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"rawQuery": true,
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"rawSql": "select\n $__timeGroup(time, $agg_interval),\n avg( case when hh = hh_lag and hr = hr_lag then null else (hh-hh_lag)::numeric * 100 / (hh-hh_lag+hr-hr_lag) end ) as \"Heap\",\n avg( case when ih = ih_lag and ir = ir_lag then null else (ih-ih_lag)::numeric * 100 / (ih-ih_lag+ir-ir_lag) end ) as \"Indexes\" \nfrom (\n select \n (data->>'heap_blks_hit')::int8 as hh, lag((data->>'heap_blks_hit')::int8) over w as hh_lag,\n (data->>'heap_blks_read')::int8 as hr, lag((data->>'heap_blks_read')::int8) over w as hr_lag,\n (data->>'idx_blks_hit')::int8 as ih, lag((data->>'idx_blks_hit')::int8) over w as ih_lag,\n (data->>'idx_blks_read')::int8 as ir, lag((data->>'idx_blks_read')::int8) over w as ir_lag,\n time\n from table_io_stats\n where dbname = '$dbname' and $__timeFilter(time)\n and tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\n window w as (order by time)\n) x\nwhere hh >= hh_lag\ngroup by 1\norder by 1",
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"rawSql": "WITH last_out_of_range_row_time(time) AS (\n SELECT time \n FROM table_io_stats\n WHERE dbname = '$dbname' AND time < $__timeFrom()::timestamptz\n ORDER BY time DESC\n LIMIT 1\n)\n\nselect\n $__timeGroup(time, $agg_interval),\n avg( case when hh = hh_lag and hr = hr_lag then null else (hh-hh_lag)::numeric * 100 / (hh-hh_lag+hr-hr_lag) end ) as \"Heap\",\n avg( case when ih = ih_lag and ir = ir_lag then null else (ih-ih_lag)::numeric * 100 / (ih-ih_lag+ir-ir_lag) end ) as \"Indexes\" \nfrom (\n select \n (data->>'heap_blks_hit')::int8 as hh, lag((data->>'heap_blks_hit')::int8) over w as hh_lag,\n (data->>'heap_blks_read')::int8 as hr, lag((data->>'heap_blks_read')::int8) over w as hr_lag,\n (data->>'idx_blks_hit')::int8 as ih, lag((data->>'idx_blks_hit')::int8) over w as ih_lag,\n (data->>'idx_blks_read')::int8 as ir, lag((data->>'idx_blks_read')::int8) over w as ir_lag,\n time\n from table_io_stats\n where\n time <= $__timeTo()::timestamptz AND time >= (SELECT time FROM last_out_of_range_row_time)\n AND dbname = '$dbname' and tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\n window w as (order by time)\n) x\nwhere hh >= hh_lag\ngroup by 1\norder by 1",
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"refId": "A",
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"resultFormat": "time_series",
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"select": [
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"sort": "desc"
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}
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},
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"pluginVersion": "12.1.0",
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"pluginVersion": "12.3.1",
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"targets": [
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{
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"alias": "$tag_index_name",
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"orderByTime": "ASC",
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"policy": "default",
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"rawQuery": true,
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"rawSql": "select\n $__timeGroup(time, $agg_interval),\n index_name,\n avg( ((idx_scan - idx_scan_lag)::numeric * 3600) / extract(epoch from time - time_lag) )\nfrom (\n select \n (data->>'idx_scan')::int8 as idx_scan, lag((data->>'idx_scan')::int8) over w as idx_scan_lag,\n tag_data->>'index_name' as index_name,\n time, lag(time) over w as time_lag\n from index_stats\n where dbname = '$dbname' and $__timeFilter(time)\n and tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\n window w as (order by time)\n) x\nwhere idx_scan >= idx_scan_lag and time > time_lag\ngroup by 1, 2\norder by 1, 2",
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"rawSql": "WITH last_out_of_range_row_time(time) AS (\n SELECT time \n FROM index_stats\n WHERE dbname = '$dbname' AND time < $__timeFrom()::timestamptz\n ORDER BY time DESC\n LIMIT 1\n)\n\nselect\n $__timeGroup(time, $agg_interval),\n index_name,\n avg( ((idx_scan - idx_scan_lag)::numeric * 3600) / extract(epoch from time - time_lag) )\nfrom (\n select \n (data->>'idx_scan')::int8 as idx_scan, lag((data->>'idx_scan')::int8) over w as idx_scan_lag,\n tag_data->>'index_name' as index_name,\n time, lag(time) over w as time_lag\n from index_stats\n where\n time <= $__timeTo()::timestamptz AND time >= (SELECT time FROM last_out_of_range_row_time)\n AND dbname = '$dbname' and tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\n window w as (order by time)\n) x\nwhere idx_scan >= idx_scan_lag and time > time_lag\ngroup by 1, 2\norder by 1, 2",
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"refId": "A",
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"resultFormat": "time_series",
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"select": [
@@ -951,7 +951,7 @@
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"textMode": "auto",
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"wideLayout": true
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},
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"pluginVersion": "12.1.0",
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"pluginVersion": "12.3.1",
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"targets": [
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{
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"datasource": {
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"group": [],
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"metricColumn": "none",
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"rawQuery": true,
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"rawSql": "SELECT\n 0 as time,\n (data->>'seconds_since_last_vacuum')::int8\nFROM\n table_stats\nWHERE\n $__timeFilter(time)\n AND dbname = '$dbname'\n AND tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\nORDER BY time DESC\nLIMIT 1\n",
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"rawSql": "SELECT\n time,\n (data->>'seconds_since_last_vacuum')::int8\nFROM\n table_stats\nWHERE\n $__timeFilter(time)\n AND dbname = '$dbname'\n AND tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\nORDER BY time DESC\nLIMIT 1\n",
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"refId": "A",
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"select": [
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[
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"textMode": "auto",
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"wideLayout": true
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},
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"pluginVersion": "12.1.0",
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"pluginVersion": "12.3.1",
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"targets": [
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{
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"datasource": {
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"group": [],
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"metricColumn": "none",
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"rawQuery": true,
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"rawSql": "SELECT\n 0 as time,\n (data->>'seconds_since_last_analyze')::int8\nFROM\n table_stats\nWHERE\n $__timeFilter(time)\n AND dbname = '$dbname'\n AND tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\nORDER BY time DESC\nLIMIT 1\n",
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"rawSql": "SELECT\n time,\n (data->>'seconds_since_last_analyze')::int8\nFROM\n table_stats\nWHERE\n $__timeFilter(time)\n AND dbname = '$dbname'\n AND tag_data @> jsonb_build_object('table_full_name', '$table_full_name')\nORDER BY time DESC\nLIMIT 1\n",
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"refId": "A",
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"select": [
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[
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"overrides": []
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},
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"gridPos": {
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"h": 5,
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"h": 6,
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"w": 12,
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"x": 0,
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"y": 30
@@ -2642,15 +2642,15 @@
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"content": "### Brought to you by\n\n[![Cybertec – The PostgreSQL Database Company](https://www.cybertec-postgresql.com/wp-content/uploads/2025/02/cybertec-logo-white-blue.svg)](https://www.cybertec-postgresql.com/en/)\n",
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"mode": "markdown"
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},
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"pluginVersion": "12.1.0",
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"pluginVersion": "12.3.1",
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"title": "",
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"transparent": true,
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"type": "text"
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}
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],
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"preload": false,
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"refresh": "",
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"schemaVersion": 41,
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"schemaVersion": 42,
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"tags": [
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"pgwatch"
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],
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"timezone": "browser",
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"title": "5. Table Details",
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"uid": "table-details",
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"version": 33
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"version": 34
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}

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