Misthios/grafana-zabbix
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

postgres: simplify db queries

Browse Source
This commit is contained in:
Alexander Zobnin
2017-10-18 15:31:03 +03:00
parent fb797325d0
commit 33cdd17b9b
4 changed files with 9 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/datasource-zabbix/zabbixDBConnector.js
View File

@@ -246,13 +246,11 @@ const itemid_format = 'FM99999999999999999999';
function buildPostgresHistoryQuery(itemids, table, timeFrom, timeTill, intervalSec, aggFunction) {
let time_expression = `clock / ${intervalSec} * ${intervalSec}`;
let query = `
SELECT DISTINCT to_char(itemid, '${itemid_format}') AS metric,
${time_expression} AS time,
${aggFunction}(value) OVER (PARTITION BY clock / ${intervalSec}) AS value
SELECT to_char(itemid, '${itemid_format}') AS metric, ${time_expression} AS time, ${aggFunction}(value) AS value
FROM ${table}
WHERE itemid IN (${itemids})
AND clock > ${timeFrom} AND clock < ${timeTill}
GROUP BY metric, clock, value
GROUP BY 1, 2
ORDER BY time ASC
`;
return query;
@@ -261,13 +259,11 @@ function buildPostgresHistoryQuery(itemids, table, timeFrom, timeTill, intervalS
function buildPostgresTrendsQuery(itemids, table, timeFrom, timeTill, intervalSec, aggFunction, valueColumn) {
let time_expression = `clock / ${intervalSec} * ${intervalSec}`;
let query = `
SELECT DISTINCT to_char(itemid, '${itemid_format}') AS metric,
${time_expression} AS time,
${aggFunction}(${valueColumn}) OVER (PARTITION BY clock / ${intervalSec}) AS value
SELECT to_char(itemid, '${itemid_format}') AS metric, ${time_expression} AS time, ${aggFunction}(${valueColumn}) AS value
FROM ${table}
WHERE itemid IN (${itemids})
AND clock > ${timeFrom} AND clock < ${timeTill}
GROUP BY metric, clock, ${valueColumn}
GROUP BY 1, 2
ORDER BY time ASC
`;
return query;