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JobCountByState query performance

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#106 6 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
typescript
Domain
databases

Research direction

Start at api_handler.go around the linked JobCountByState query and reproduce its performance with a large jobs table. Inspect the query plan and existing indexes, then verify that the selected change makes the API request complete without timing out on a comparable dataset.

Written by the indexing model from the issue text.

Description

Hey,

I'm really enjoying river so far, so thank you for that!

I was playing around with River UI, but on a table with just over 5 million jobs the queries become so slow that the api requests are timing out and I'm just getting a white screen (specifically the JobCountByState query). Haven't looked into it too much, so not sure if it's just missing an index somewhere.

This is happening both on my local M2 MacbookPro and on a small AlloyDB instance.

EDIT:

For some numbers, that query took 9s to complete on AlloyDB (which admittedly is under heavy use at the moment). The same query took just over 3s on my otherwise idle Macbook.

Dominant language
TypeScript
Stars
236
Forks
39
Avg merge
3h 40m
Merged PRs (30d)
23

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