import "github.com/pingcap/tidb/bindinfo"
bind.go cache.go handle.go session_handle.go
const (
// Using is the bind info's in use status.
Using = "using"
// Invalid is the bind info's invalid status.
Invalid = "invalid"
)const SessionBindInfoKeyType sessionBindInfoKeyType = 0SessionBindInfoKeyType is a variable key for store session bind info.
Lease influences the duration of loading bind info and handling invalid bind.
BindHint will add hints for stmt according to the hints in `hintsSet`.
type BindHandle struct {
// contains filtered or unexported fields
}BindHandle is used to handle all global sql bind operations.
func NewBindHandle(ctx sessionctx.Context) *BindHandle
NewBindHandle creates a new BindHandle.
func (h *BindHandle) AddBindRecord(record *BindRecord) (err error)
AddBindRecord adds a BindRecord to the storage and BindMeta to the cache.
func (h *BindHandle) AddDropInvalidBindTask(invalidBindRecord *BindRecord)
AddDropInvalidBindTask add bindRecord to invalidBindRecordMap when the bindRecord need to be deleted.
func (h *BindHandle) DropBindRecord(record *BindRecord) (err error)
DropBindRecord drops a BindRecord to the storage and BindMeta int the cache.
func (h *BindHandle) DropInvalidBindRecord()
DropInvalidBindRecord execute the drop bindRecord task.
func (h *BindHandle) GetAllBindRecord() (bindRecords []*BindMeta)
GetAllBindRecord return all bind record in cache.
func (h *BindHandle) GetBindRecord(hash, normdOrigSQL, db string) *BindMeta
GetBindRecord return the bindMeta of the (normdOrigSQL,db) if bindMeta exist.
func (h *BindHandle) Size() int
Size return the size of bind info cache.
func (h *BindHandle) Update(fullLoad bool) (err error)
Update updates the global sql bind cache.
type BindMeta struct {
*BindRecord
// HintSet stores the set of hints of binding sql.
*HintsSet
}BindMeta stores the basic bind info and bindSql astNode.
type BindRecord struct {
OriginalSQL string
BindSQL string
Db string
// Status represents the status of the binding. It can only be one of the following values:
// 1. deleted: BindRecord is deleted, can not be used anymore.
// 2. using: BindRecord is in the normal active mode.
Status string
CreateTime types.Time
UpdateTime types.Time
Charset string
Collation string
}BindRecord represents a sql bind record retrieved from the storage.
type HintsSet struct {
// contains filtered or unexported fields
}HintsSet contains all hints of a query.
CollectHint collects hints for a statement.
type SessionHandle struct {
// contains filtered or unexported fields
}SessionHandle is used to handle all session sql bind operations.
func NewSessionBindHandle(parser *parser.Parser) *SessionHandle
NewSessionBindHandle creates a new SessionBindHandle.
func (h *SessionHandle) AddBindRecord(record *BindRecord) error
AddBindRecord new a BindRecord with BindMeta, add it to the cache.
func (h *SessionHandle) Close()
Close closes the session handle.
func (h *SessionHandle) DropBindRecord(record *BindRecord)
DropBindRecord drops a BindRecord in the cache.
func (h *SessionHandle) GetAllBindRecord() (bindRecords []*BindMeta)
GetAllBindRecord return all session bind info.
func (h *SessionHandle) GetBindRecord(normdOrigSQL, db string) *BindMeta
GetBindRecord return the BindMeta of the (normdOrigSQL,db) if BindMeta exist.
Package bindinfo imports 18 packages (graph) and is imported by 10 packages. Updated 2019-09-16. Refresh now. Tools for package owners.