Unverified50% confidenceSolutionExact time
This solution uses PostgreSQL's upsert mechanism to handle duplicate submissions, updating the existing record rather than creating a new one when the same record arrives again.
1
Sources
50%
Confidence
Long-term
Relevance
10/5/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedAfter approval, the system writes the complete outreach event to PostgreSQL and updates the lead status, forming an audit trail and preventing duplicate outreach.79% similarUnverifiedPostgreSQL's WAL employs a write-ahead logging strategy in which all data changes are sequentially written to WAL files in log form before being written to data pages, ensuring crash recovery capability.75% similarUnverifiedPostgreSQL的MVCC机制下，每次UPDATE操作实际上是写入一条新的行版本，对大JSONB字段频繁增量更新会导致写放大问题72% similarUnverified在 PostgreSQL 中，WAL 是崩溃恢复、流复制、时间点恢复（PITR）和逻辑解码的数据来源69% similarUnverifiedTemporal 的状态存储在 PostgreSQL 或 Cassandra 等持久化数据库中，能在服务崩溃重启后从中断点精确恢复67% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/976884API
curl https://kongchang.com/api/v1/knowledge/claims/976884MCP
get_claim(id=976884)