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Merge pull request #1139 from nymkappa/feature/improve-statistics-query-perf

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Order by native `statistics.added` field for better query performances
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wiz 2022-01-14 09:30:01 +00:00 committed by GitHub
commit 9caa57e81d
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1 changed files with 4 additions and 4 deletions
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8
backend/src/api/statistics.ts
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@ -292,7 +292,7 @@ class Statistics {
FROM statistics \ FROM statistics \
WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \ WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \
GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \ GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
ORDER BY added DESC;`; ORDER BY statistics.added DESC;`;
} }
private getQueryForDays(div: number, interval: string) { private getQueryForDays(div: number, interval: string) {
@ -340,7 +340,7 @@ class Statistics {
FROM statistics \ FROM statistics \
WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \ WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \
GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \ GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
ORDER BY added DESC;`; ORDER BY statistics.added DESC;`;
} }
private async $get(id: number): Promise<OptimizedStatistic | undefined> { private async $get(id: number): Promise<OptimizedStatistic | undefined> {
@ -360,7 +360,7 @@ class Statistics {
public async $list2H(): Promise<OptimizedStatistic[]> { public async $list2H(): Promise<OptimizedStatistic[]> {
try { try {
const connection = await DB.pool.getConnection(); const connection = await DB.pool.getConnection();
const query = `SELECT *, UNIX_TIMESTAMP(added) as added FROM statistics ORDER BY added DESC LIMIT 120`; const query = `SELECT *, UNIX_TIMESTAMP(added) as added FROM statistics ORDER BY statistics.added DESC LIMIT 120`;
const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout }); const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
connection.release(); connection.release();
return this.mapStatisticToOptimizedStatistic(rows); return this.mapStatisticToOptimizedStatistic(rows);
@ -373,7 +373,7 @@ class Statistics {
public async $list24H(): Promise<OptimizedStatistic[]> { public async $list24H(): Promise<OptimizedStatistic[]> {
try { try {
const connection = await DB.pool.getConnection(); const connection = await DB.pool.getConnection();
const query = `SELECT *, UNIX_TIMESTAMP(added) as added FROM statistics ORDER BY added DESC LIMIT 1440`; const query = `SELECT *, UNIX_TIMESTAMP(added) as added FROM statistics ORDER BY statistics.added DESC LIMIT 1440`;
const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout }); const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
connection.release(); connection.release();
return this.mapStatisticToOptimizedStatistic(rows); return this.mapStatisticToOptimizedStatistic(rows);