fix(coderd/database): improve query perf of GetTemplateAppInsights

[mafredri]

The main performance gain here is to join workspace_apps with template_usage_stats before doing jsonb_each. Previously we were doing a lateral join of workspace_apps to the lateral/cross joined (app_usage_mins) rows which was performing poorly.

Ref: #12122

New:

https://explain.dalibo.com/plan/c993d4250f56f555

template_ids|active_users|slug|display_name|icon|usage_seconds
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|19|code-server|code-server|/icon/code.svg|1029540
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|10|filebrowser|File Browser|https://raw.githubusercontent.com/filebrowser/logo/master/icon_raw.svg|1800

Old:

https://explain.dalibo.com/plan/aaed9gbg8hda1c6e

template_ids|active_users|slug_or_port|display_name|icon|is_app|usage_seconds
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|2|1234|||f|120
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|2|13337|||f|360
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|4|3000|||f|600
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|2|3001|||f|360
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|3002|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|33615|||f|180
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|35713|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|38039|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|40367|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|41435|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|42845|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|43271|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|4444|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|46415|||f|180
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|46851|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|55|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|5500|||f|360
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|2|5555|||f|180
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|5556|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|5991|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|6006|||f|2640
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|6081|||f|180
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|7007|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|80|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|5|8000|||f|1020
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|5|8080|||f|1440
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|8081|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|1|9|||f|60
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|19|code-server|code-server|/icon/code.svg|t|1029540
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|10|filebrowser|File Browser|https://raw.githubusercontent.com/filebrowser/logo/master/icon_raw.svg|t|1800
{0d286645-29aa-4eaf-9b52-cc5d2740c90b}|24|[terminal]|||f|333900
(31 rows)

[mafredri]

• fix(coderd/database): improve query perf of GetTemplateAppInsights #12767 👈
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

Join @mafredri and the rest of your teammates on Graphite

[mtojek]

👍