context

Documentation

Index

• type AllocatorContext
• type MutateContext

Types

type AllocatorContext

type AllocatorContext interface {
	// TxnRecordTempTable record the temporary table to the current transaction.
	// This method will be called when the temporary table is modified or should allocate id in the transaction.
	TxnRecordTempTable(tbl *model.TableInfo) tableutil.TempTable
}

AllocatorContext is used to provide context for method `table.Allocators`.

type MutateContext

type MutateContext interface {
	AllocatorContext
	// GetExprCtx returns the context to build or evaluate expressions
	GetExprCtx() exprctx.ExprContext
	// Value returns the value associated with this context for key.
	Value(key fmt.Stringer) any
	// GetSessionVars returns the session variables.
	GetSessionVars() *variable.SessionVars
	// Txn returns the current transaction which is created before executing a statement.
	// The returned kv.Transaction is not nil, but it maybe pending or invalid.
	// If the active parameter is true, call this function will wait for the pending txn
	// to become valid.
	Txn(active bool) (kv.Transaction, error)
	// StmtGetMutation gets the binlog mutation for current statement.
	StmtGetMutation(int64) *binlog.TableMutation
	// GetDomainInfoSchema returns the latest information schema in domain
	GetDomainInfoSchema() infoschema.MetaOnlyInfoSchema
	// TxnRecordTempTable record the temporary table to the current transaction.
	// This method will be called when the temporary table is modified or should allocate id in the transaction.
	TxnRecordTempTable(tbl *model.TableInfo) tableutil.TempTable
}

MutateContext is used to when mutating a table.