WithStatements() — supabase Function Reference
Architecture documentation for the WithStatements() function in WithStatements.tsx from the supabase codebase.
Entity Profile
Dependency Diagram
graph TD 1062988d_666a_109e_9846_15b701cc0d74["WithStatements()"] 1986cdbd_1b6f_c5c3_ad56_895d25013fca["transformStatementDataToRows()"] 1062988d_666a_109e_9846_15b701cc0d74 -->|calls| 1986cdbd_1b6f_c5c3_ad56_895d25013fca e5a814f1_277b_493f_d4bd_8f8fcbe5f72f["captureQueryPerformanceError()"] 1062988d_666a_109e_9846_15b701cc0d74 -->|calls| e5a814f1_277b_493f_d4bd_8f8fcbe5f72f style 1062988d_666a_109e_9846_15b701cc0d74 fill:#6366f1,stroke:#818cf8,color:#fff
Relationship Graph
Source Code
apps/studio/components/interfaces/QueryPerformance/WithStatements/WithStatements.tsx lines 36–283
export const WithStatements = ({
queryHitRate,
queryPerformanceQuery,
queryMetrics,
}: WithStatementsProps) => {
const { ref } = useParams()
const { data: project } = useSelectedProjectQuery()
const state = useDatabaseSelectorStateSnapshot()
const { data, isLoading, isRefetching, error: queryError } = queryPerformanceQuery
const isPrimaryDatabase = state.selectedDatabaseId === ref
const formattedDatabaseId = formatDatabaseID(state.selectedDatabaseId ?? '')
const hitRateError = 'error' in queryHitRate ? queryHitRate.error : null
const metricsError = 'error' in queryMetrics ? queryMetrics.error : null
const mainQueryError = queryError || null
const [showResetgPgStatStatements, setShowResetgPgStatStatements] = useState(false)
const [showBottomSection, setShowBottomSection] = useLocalStorageQuery(
LOCAL_STORAGE_KEYS.QUERY_PERF_SHOW_BOTTOM_SECTION,
true
)
const [{ indexAdvisor }] = useQueryStates({
indexAdvisor: parseAsString.withDefault('false'),
})
const handleRefresh = () => {
queryPerformanceQuery.runQuery()
queryHitRate.runQuery()
queryMetrics.runQuery()
}
const processedData = useMemo(() => {
return transformStatementDataToRows(data || [], indexAdvisor === 'true')
}, [data, indexAdvisor])
const { data: databases } = useReadReplicasQuery({ projectRef: ref })
useEffect(() => {
state.setSelectedDatabaseId(ref)
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [ref])
useEffect(() => {
if (mainQueryError) {
const errorMessage = getErrorMessage(mainQueryError)
captureQueryPerformanceError(mainQueryError, {
projectRef: ref,
databaseIdentifier: state.selectedDatabaseId,
queryPreset: 'unified',
queryType: 'mainQuery',
postgresVersion: project?.dbVersion,
databaseType: isPrimaryDatabase ? 'primary' : 'read-replica',
sql: queryPerformanceQuery.resolvedSql,
errorMessage: errorMessage || undefined,
})
}
}, [
mainQueryError,
ref,
state.selectedDatabaseId,
project?.dbVersion,
isPrimaryDatabase,
queryPerformanceQuery.resolvedSql,
])
useEffect(() => {
if (hitRateError) {
const errorMessage = getErrorMessage(hitRateError)
captureQueryPerformanceError(hitRateError, {
projectRef: ref,
databaseIdentifier: state.selectedDatabaseId,
queryPreset: 'queryHitRate',
queryType: 'hitRate',
postgresVersion: project?.dbVersion,
databaseType: isPrimaryDatabase ? 'primary' : 'read-replica',
errorMessage: errorMessage || undefined,
})
}
}, [hitRateError, ref, state.selectedDatabaseId, project?.dbVersion, isPrimaryDatabase])
useEffect(() => {
if (metricsError) {
const errorMessage = getErrorMessage(metricsError)
captureQueryPerformanceError(metricsError, {
projectRef: ref,
databaseIdentifier: state.selectedDatabaseId,
queryPreset: 'queryMetrics',
queryType: 'metrics',
postgresVersion: project?.dbVersion,
databaseType: isPrimaryDatabase ? 'primary' : 'read-replica',
errorMessage: errorMessage || undefined,
})
}
}, [metricsError, ref, state.selectedDatabaseId, project?.dbVersion, isPrimaryDatabase])
const hasError = mainQueryError || hitRateError || metricsError
const errorMessage = mainQueryError
? getErrorMessage(mainQueryError) || 'Failed to load query performance data'
: hitRateError
? getErrorMessage(hitRateError) || 'Failed to load cache hit rate data'
: metricsError
? getErrorMessage(metricsError) || 'Failed to load query metrics'
: null
return (
<>
{hasError && (
<div className="px-6 pt-4">
<Admonition
type="destructive"
title="Error loading query performance data"
description={
errorMessage ||
'An error occurred while loading query performance data. Please try refreshing the page.'
}
/>
</div>
)}
<QueryPerformanceMetrics />
<QueryPerformanceFilterBar
showRolesFilter={true}
actions={
<>
<ButtonTooltip
type="default"
size="tiny"
icon={<RefreshCw />}
onClick={handleRefresh}
tooltip={{ content: { side: 'top', text: 'Refresh' } }}
className="w-[26px]"
/>
<ButtonTooltip
type="default"
size="tiny"
icon={<RotateCcw />}
onClick={() => setShowResetgPgStatStatements(true)}
tooltip={{ content: { side: 'top', text: 'Reset report' } }}
className="w-[26px]"
/>
<DownloadResultsButton
results={processedData}
fileName={`Supabase Query Performance Statements (${ref})`}
align="end"
/>
</>
}
/>
<LoadingLine loading={isLoading || isRefetching} />
<QueryPerformanceGrid
aggregatedData={processedData}
isLoading={isLoading}
error={
mainQueryError
? getErrorMessage(mainQueryError) || 'Failed to load query performance data'
: null
}
onRetry={handleRefresh}
/>
<div
className={cn('px-6 py-6 flex gap-x-4 border-t relative', {
hidden: showBottomSection === false,
})}
>
<Button
className="absolute top-1.5 right-3 px-1.5"
type="text"
size="tiny"
onClick={() => setShowBottomSection(false)}
>
<X size="14" />
</Button>
<div className="w-[33%] flex flex-col gap-y-1 text-sm">
<p>Reset report</p>
<p className="text-xs text-foreground-light">
Consider resetting the analysis after optimizing any queries
</p>
<Button
type="default"
className="!mt-3 w-min"
onClick={() => setShowResetgPgStatStatements(true)}
>
Reset report
</Button>
</div>
<div className="w-[33%] flex flex-col gap-y-1 text-sm">
<p>How is this report generated?</p>
<Markdown
className="text-xs"
content={`This report uses the pg_stat_statements table, and pg_stat_statements extension. [Learn more here](${DOCS_URL}/guides/platform/performance#examining-query-performance).`}
/>
</div>
<div className="w-[33%] flex flex-col gap-y-1 text-sm">
<p>Inspect your database for potential issues</p>
<Markdown
className="text-xs"
content={`The Supabase CLI comes with a range of tools to help inspect your Postgres instances for
potential issues. [Learn more here](${DOCS_URL}/guides/database/inspect).`}
/>
</div>
</div>
<ConfirmationModal
visible={showResetgPgStatStatements}
size="medium"
variant="destructive"
title="Reset query performance analysis"
confirmLabel="Reset report"
confirmLabelLoading="Resetting report"
onCancel={() => setShowResetgPgStatStatements(false)}
onConfirm={async () => {
const connectionString = databases?.find(
(db) => db.identifier === state.selectedDatabaseId
)?.connectionString
if (IS_PLATFORM && !connectionString) {
return toast.error('Unable to run query: Connection string is missing')
}
try {
await executeSql({
projectRef: project?.ref,
connectionString,
sql: `SELECT pg_stat_statements_reset();`,
})
handleRefresh()
setShowResetgPgStatStatements(false)
} catch (error: any) {
toast.error(`Failed to reset analysis: ${error.message}`)
}
}}
>
<p className="text-foreground-light text-sm">
This will reset the pg_stat_statements table in the extensions schema on your{' '}
<span className="text-foreground">
{isPrimaryDatabase ? 'primary database' : `read replica (ID: ${formattedDatabaseId})`}
</span>
, which is used to calculate query performance. This data will repopulate immediately
after.
</p>
</ConfirmationModal>
</>
)
}
Domain
Subdomains
Source
Frequently Asked Questions
What does WithStatements() do?
WithStatements() is a function in the supabase codebase.
What does WithStatements() call?
WithStatements() calls 2 function(s): captureQueryPerformanceError, transformStatementDataToRows.
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