Why Database Cursor Fetching Needs Pagination Not Streaming
from Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations Hosted by Fexingo
Lucas and Luna dig into why database cursors cause memory blowups when naive streaming is used instead of proper pagination. Using a real-world example of a Postgres query that crashed an analytics dashboard by fetching 2 million rows at once, they explain the mechanics of server-side cursors, client-side buffering, and why LIMIT/OFFSET is not the answer. The episode walks through a concrete fix: using keyset pagination with a stable sort to avoid the O(n) cost of offset skips. Listeners learn one practical pattern to prevent runaway memory in production data pipelines. #DatabaseCursors #Pagination #Postgres #QueryPerformance #DataEngineering #SQL #KeysetPagination #CursorFetching #MemoryManagement #AnalyticsDashboard #BackendPerformance #TechDeepDive #DatabaseOptimization #StreamingData #Technology #FexingoBusiness #BusinessPodcast #DatabaseTechWithFexingo Keep every episode free: buymeacoffee.com/fexingo
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