varsutil

Documentation

Index

• func GetGlobalSystemVar(s *variable.SessionVars, key string) (string, error)
• func GetScopeNoneSystemVar(key string) (string, bool, error)
• func GetSessionOnlySysVars(s *variable.SessionVars, key string) (string, bool, error)
• func GetSessionSystemVar(s *variable.SessionVars, key string) (string, error)
• func GoTimeToTS(t time.Time) uint64
• func SetSessionSystemVar(vars *variable.SessionVars, name string, value types.Datum) error

Functions

func GetGlobalSystemVar

func GetGlobalSystemVar(s *variable.SessionVars, key string) (string, error)

GetGlobalSystemVar gets a global system variable.

func GetScopeNoneSystemVar

func GetScopeNoneSystemVar(key string) (string, bool, error)

GetScopeNoneSystemVar checks the validation of `key`, and return the default value if its scope is `ScopeNone`.

func GetSessionOnlySysVars

func GetSessionOnlySysVars(s *variable.SessionVars, key string) (string, bool, error)

GetSessionOnlySysVars get the default value defined in code for session only variable. The return bool value indicates whether it's a session only variable.

func GetSessionSystemVar

func GetSessionSystemVar(s *variable.SessionVars, key string) (string, error)

GetSessionSystemVar gets a system variable. If it is a session only variable, use the default value defined in code. Returns error if there is no such variable.

func GoTimeToTS

func GoTimeToTS(t time.Time) uint64

GoTimeToTS converts a Go time to uint64 timestamp.

func SetSessionSystemVar

func SetSessionSystemVar(vars *variable.SessionVars, name string, value types.Datum) error

SetSessionSystemVar sets system variable and updates SessionVars states.