Unverified70% confidenceFactExact time
CDC (Change Data Capture) is a technical pattern for identifying and capturing data change events from databases, with three main implementation approaches: database log-based (binlog, WAL), trigger-based, and timestamp polling-based.
2
Sources
70%
Confidence
Long-term
Relevance
8/9/2026
First Seen
Sources
生产级RAG向量索引实时同步：策略选型与工程实践
Related Claims
UnverifiedCDC reads logs such as the database's binlog/WAL and delivers each row-level change to downstream systems in real time as a stream, with latency as low as seconds and almost zero intrusion into the source database.75% similarUnverifiedparadigm-memory creates an audit record for every data change (write, modification) to memory.61% similarUnverified预取策略以存储换时间，类似数据库物化视图和搜索引擎预索引机制60% similar
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