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Professional notes by Craig Johnston
long-form, short-form, working drafts · since 2008
VOL. XIX · MMXXVI
126 NOTES IN PRINT

Tag: PySpark

1 NOTE
LXXX

PostgreSQL to OpenSearch with PySpark on Kubernetes

Date-windowed ETL, idempotent upserts, and CronJob scheduling
KUBERNETESPOSTGRESQLOPENSEARCHPYSPARK
2026-02-25