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Jordi Enric
e3eb51f428
- Filter out never-run queries early: previously the queries didn't
check if a statement had ever actually been executed, so PostgreSQL
would process and return those useless rows. Adding WHERE calls > 0
skips
them upfront.
- Replace window functions with a pre-computed total: two queries were
using a SQL window function to calculate the "% of total time" column,
which forces PostgreSQL to load every single row into memory before
returning results. Replaced with a small CTE that computes the total
once separately, so PostgreSQL can apply the row limit without buffering
everything first. This was the main cause of page crashes on databases
with a large query history.
- slowQueriesCount bug fix: added missing as statements alias
- queryMetrics WHERE clause fix: ${where} was producing WHERE ... WHERE
..., now uses .replace(/^WHERE/, 'AND')
Writing components
Where to create your components
- For components that declare the general structure and layout of a page:
/components/layouts/xxx
- For components that are tightly coupled to a specific interface:
/components/interfaces/xxx
- For components that are meant to be reusable across multiple pages:
/components/ui/xxx
- Note: We're gradually moving files out of the
to-be-cleanedfolder into the respective folders as we refactor
Component structure
- If a component has constants and utility methods that are tightly coupled to itself, keep them close to the component and enclose them in a folder with an
index.tsxas an entry point - Otherwise it can just be a file on its own
- For example:
-
components/ui - SampleComponentA - SampleComponentA.tsx - SampleComponentA.constants.ts - SampleComponentA.utils.ts - SampleComponentA.types.ts - index.ts - SampleComponentB.tsx
-
Template for building components
// Declare the prop types of your component
interface ComponentAProps {
sampleProp: string
}
// Name your component accordingly
const ComponentA = ({ sampleProp }: ComponentAProps) => {
return <div>ComponentA: {sampleProp}</div>
}
export default ComponentA