v0.4.5 Release Notes

Released 2026-04-16

v0.4.4 -> v0.4.5

Summary

Split Entry.parseCached into a write-path parseAndCache and a read-path cached to eliminate a data race between concurrent RLock holders, and fix GetField which previously called the cache accessor with no lock held.

翻譯

將 `Entry.parseCached` 拆分為寫路徑 `parseAndCache` 與讀路徑 `cached`，消除並發 RLock 持有者之間的 data race，並修復 `GetField` 先前在完全無鎖狀態下呼叫快取存取器的問題。

Changes

FIX

Split Entry.parseCached() into parseAndCache() (write-path, mutates e.parsed, must be called under write lock or single-threaded init) and cached() (pure read, returns (nil, false) on miss; safe under RLock)
Fix GetField data race: previously called parseCached() after Get() had already released the RLock — now holds the db RLock across lookup, cache read, and WalkKeys to prevent concurrent map mutation by SetField / IncrField / DelField

翻譯

將 Entry.parseCached() 拆分為 parseAndCache()（寫路徑，會寫入 e.parsed，必須持寫鎖或單執行緒初始化時呼叫）與 cached()（純讀，miss 時回傳 (nil, false)；RLock 下安全）
修復 GetField 的 data race：先前在 Get() 已釋放 RLock 後才呼叫 parseCached() — 現在整個查找、快取讀取、WalkKeys 流程皆在 db RLock 下進行，避免 SetField / IncrField / DelField 並發修改共用 map

REFACTOR

Update all write-path callers (Set, SetField, IncrField, DelField, AOF replay) to use parseAndCache()
Update read-path callers (Query, GetField) to use cached(), relying on the invariant that every write path warms e.parsed before releasing the write lock

翻譯

將所有寫路徑（Set、SetField、IncrField、DelField、AOF replay）改為呼叫 parseAndCache()
將讀路徑（Query、GetField）改為呼叫 cached()，仰賴「每個寫路徑在釋放寫鎖前已預熱 e.parsed」此不變量

Files Changed

File	Status	Tag
`core/store/set.go`	Modified	FIX, REFACTOR
`core/store/get.go`	Modified	FIX
`core/store/query.go`	Modified	REFACTOR
`core/store/setField.go`	Modified	REFACTOR
`core/store/incrField.go`	Modified	REFACTOR
`core/store/del.go`	Modified	REFACTOR
`core/store/aof.go`	Modified	REFACTOR
`CLAUDE.md`	Modified	DOC

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