tracing

const (
	PhaseBegin      Phase = "B"
	PhaseEnd        Phase = "E"
	PhaseAsyncBegin Phase = "b"
	PhaseAsyncEnd   Phase = "e"
	PhaseFlowBegin  Phase = "s"
	PhaseFlowEnd    Phase = "f"
	PhaseInstant    Phase = "i"
)

const (
	// TxnLifecycle traces transaction begin/commit/rollback events.
	TxnLifecycle TraceCategory = 1 << iota
	// Txn2PC traces two-phase commit prewrite and commit phases.
	Txn2PC
	// TxnLockResolve traces lock resolution and conflict handling.
	TxnLockResolve
	// StmtLifecycle traces statement start/finish events.
	StmtLifecycle
	// StmtPlan traces statement plan digest and optimization.
	StmtPlan
	// KvRequest traces client-go kv request and responses
	KvRequest
	// UnknownClient is the fallback category for unmapped client-go trace events.
	// Used when client-go emits events with categories not yet mapped in adapter.go.
	// This provides forward compatibility if client-go adds new categories.
	UnknownClient
	// General is used by tracing API
	General
	// DDLJob traces DDL job events.
	DDLJob
	// DevDebug traces development/debugging events.
	DevDebug
	// TiKVRequest maps to client-go's FlagTiKVCategoryRequest.
	// Controls request-level tracing in TiKV.
	TiKVRequest
	// TiKVWriteDetails maps to client-go's FlagTiKVCategoryWriteDetails.
	// Controls detailed write operation tracing in TiKV.
	TiKVWriteDetails
	// TiKVReadDetails maps to client-go's FlagTiKVCategoryReadDetails.
	// Controls detailed read operation tracing in TiKV.
	TiKVReadDetails
	// RegionCache traces region cache events.
	RegionCache
)