Chunked Checksum
Compare aligned key ranges with counts and canonical hashes, include destination-only keys, and repair differences without overwriting newer data.
-
-
Delete Tombstone
Retain the deletion evidence needed to reject old updates, and distinguish versioned sink markers from Kafka null-value tombstone records.
-
Keyset Pagination
Resume an ordered query after the last key pair, handle timestamp ties, and distinguish pagination correctness from late-commit capture.
-
Snapshot and Stream Handoff
Connect an initial database snapshot to a retained change stream without gaps, using a supported boundary rather than independently sampled times.
-
Logical Replication Slot
Understand PostgreSQL logical slots, retained WAL and consumer progress, and why a slot does not prove that an analytical destination is current.
-
Read Replica
Move suitable reads to a replica while accounting for replay lag, query conflicts, source load, and the limits of failover and CDC support.
-
Database Ingestion and Change Data Capture
Build database copies with explicit snapshot boundaries, safe progress tracking, delete handling, and reconciliation.