[[guc:synchronous_commit]]

控制提交等待本地或远端 WAL 持久化的时点。

PostgreSQL 18 官方参数参考

被哪些等待事件引用

• Activity/RecoveryWalStream
• Activity/WalReceiverMain
• Activity/WalSenderMain
• Activity/WalSummarizerWal
• Activity/WalWriterMain
• Client/LibpqwalreceiverConnect
• Client/LibpqwalreceiverReceive
• Client/WalSenderWaitForWal
• Client/WalSenderWriteData
• IO/WalBootstrapSync
• IO/WalBootstrapWrite
• IO/WalCopyRead
• IO/WalCopySync
• IO/WalCopyWrite
• IO/WalInitSync
• IO/WalInitWrite
• IO/WalRead
• IO/WalSummaryRead
• IO/WalSummaryWrite
• IO/WalSync
• IO/WalSyncMethodAssign
• IO/WalWrite
• IO/WalsenderTimelineHistoryRead
• IPC/BackupWaitWalArchive
• IPC/WalReceiverExit
• IPC/WalReceiverUpstreamCatchup
• IPC/WalReceiverWaitStart
• IPC/WalSummaryReady
• LWLock/SyncRep
• LWLock/WALSummarizer
• LWLock/WALWrite
• Timeout/WalSummarizerError