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Optimising count query : Added option param to skip distinct from count query for members events API

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Ref https://linear.app/tryghost/issue/SLO-193/optimise-count-query-skip-distinct-from-count-query-for-members-events

The member events endpoint have many queries like:-

select count(distinct members_subscribe_events.id) as aggregate 
from `members_subscribe_events` 
where `members_subscribe_events`.`created_at` < '2024-07-30 11:30:39'

In these queries, distinct is not required as id is a primary key. Skipping distinct would improve the performance. 

This PR will changed the query to:-

select count(*) as aggregate 
from `members_subscribe_events` 
where `members_subscribe_events`.`created_at` < '2024-07-30 11:30:39'
This commit is contained in:
Princi Vershwal 2024-07-31 09:37:34 +05:30 committed by GitHub
parent 61641bc7c6
commit bb33a84058
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1 changed files with 15 additions and 0 deletions
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15
ghost/members-api/lib/repositories/EventRepository.js
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@ -151,6 +151,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'newsletter'],
filter: 'custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -193,6 +194,7 @@ module.exports = class EventRepository {
'stripeSubscription.stripePrice.stripeProduct.product'
],
filter: 'custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -245,6 +247,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member'],
filter: 'custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -277,6 +280,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member'],
filter: 'custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -314,6 +318,7 @@ module.exports = class EventRepository {
'tagAttribution'
],
filter: 'subscriptionCreatedEvent.id:null+custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -368,6 +373,7 @@ module.exports = class EventRepository {
'tagAttribution'
],
filter: 'member_id:-null+custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -416,6 +422,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'post', 'parent'],
filter: 'member_id:-null+custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -449,6 +456,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'link', 'link.post'],
filter: 'custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -537,6 +545,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'post'],
filter: 'custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -571,6 +580,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'email'],
filter: filterStr,
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -613,6 +623,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'email'],
filter: 'delivered_at:-null+custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -655,6 +666,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'email'],
filter: 'opened_at:-null+custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -697,6 +709,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'email'],
filter: 'custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -730,6 +743,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member', 'email'],
filter: 'failed_at:-null+custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),
@ -772,6 +786,7 @@ module.exports = class EventRepository {
...options,
withRelated: ['member'],
filter: 'custom:true',
useBasicCount: true,
mongoTransformer: chainTransformers(
// First set the filter manually
replaceCustomFilterTransformer(filter),