可串行快照隔离
Recorded source states and original language descriptions. Missing version evidence stays unknown.
The source snapshot records transitions for PostgreSQL 8.1–18. The historical matrix records independent cells for 7.4–18. Neither records support for PostgreSQL 19 or 20; newer versions remain unknown. These source claims are distinct from runtime measurements.
No translation of this description is recorded. The original Chinese description is shown. The source label is retained in Chinese; no translated label is recorded.
后端
Description
实现了真正的可串行快照隔离。此前，请求可串行隔离级别仅保证在整个事务中使用单个 MVCC 快照，这允许某些已知的异常现象发生。
Selected version: PostgreSQL 18
No
Compare versions
Original documentation links
Related source snapshot entry · The original source supplies this relationship; each matrix retains its own states.
Complete source facts and provenance
legacy · center · 9ad747091ed2943917ba3d0174c5118d7598473c2d48f048cc5294333281dbb1
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