meta

Documentation

Index

• Constants
• func AutoIDKey(tableID int64) string
• func DBMetaKey(databaseID int64) string
• func GenGlobalID(store kv.Storage) (ID int64, err error)
• func GenID(txn kv.Transaction, key []byte, step int) (int64, error)

Constants

const (
	// SchemaMetaPrefix is the prefix for database meta key prefix.
	SchemaMetaPrefix = "mDB:"
	// TableMetaPrefix is the prefix for table meta key prefix.
	TableMetaPrefix = "mTable:"
)

Functions

func AutoIDKey

func AutoIDKey(tableID int64) string

AutoIDKey generates table autoID meta key according to tableID.

func DBMetaKey

func DBMetaKey(databaseID int64) string

DBMetaKey generates database meta key according to databaseID.

func GenGlobalID

func GenGlobalID(store kv.Storage) (ID int64, err error)

GenGlobalID generates the next id in the store scope.

func GenID

func GenID(txn kv.Transaction, key []byte, step int) (int64, error)

GenID adds step to the value for key and returns the sum.