> ## Documentation Index > Fetch the complete documentation index at: https://planetscale.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create switchover export const PlatformAvailability = ({current, vitess, postgres}) => { const docsHref = path => { if (!path) return path; const normalized = path.startsWith('/') ? path : `/${path}`; return normalized; }; const labels = { vitess: 'Vitess', postgres: 'Postgres' }; if (current === 'both') { return

Vitess and Postgres

; } const hasVitess = current === 'vitess' || Boolean(vitess); const hasPostgres = current === 'postgres' || Boolean(postgres); const only = !(hasVitess && hasPostgres); const engines = []; if (current === 'vitess' || current === 'postgres') engines.push(current); if (hasVitess && current !== 'vitess') engines.push('vitess'); if (hasPostgres && current !== 'postgres') engines.push('postgres'); return

{engines.map(engine => { const isCurrent = current === engine; const href = docsHref(engine === 'vitess' ? vitess : postgres); const label = only ? `${labels[engine]} only` : labels[engine]; const state = isCurrent || !href ? 'current' : 'link'; if (isCurrent || !href) { return {label} ; } return {label} ; })}

; };