client

type Client interface {
	// GetRoute gets a range and its leader Peer from MS by key.
	// The range may expire after split. Caller is responsible for caching and
	// taking care of range change.
	// Also it may return nil if MS finds no range for the key temporarily,
	// client should retry later.
	GetRoute(dbId, tableId uint64, key []byte) ([]*metapb.Route, error)
	GetNode(nodeId uint64) (*metapb.Node, error)
	GetDB(dbName string) (*metapb.DataBase, error)
	GetTable(dbName, tableName string) (*metapb.Table, error)
	GetTableById(dbId, tableId uint64) (*metapb.Table, error)
	GetColumns(dbId, tableId uint64) ([]*metapb.Column, error)
	GetColumnByName(dbId, tableId uint64, columnName string) (*metapb.Column, error)
	GetColumnByID(dbId, tableId uint64, columnId uint64) (*metapb.Column, error)
	// columns输入参数只需要填写name和data type即可
	// 返回master server处理后的columns列表(本次新增部分)
	AddColumns(dbId, tableId uint64, columns []*metapb.Column) ([]*metapb.Column, error)
	TruncateTable(dbId, tableId uint64) error
	CreateDatabase(dbName string) error
	CreateTable(dbName, tableName, properties string) error

	NodeHeartbeat(*mspb.NodeHeartbeatRequest) (*mspb.NodeHeartbeatResponse, error)
	RangeHeartbeat(*mspb.RangeHeartbeatRequest) (*mspb.RangeHeartbeatResponse, error)
	NodeLogin(*mspb.NodeLoginRequest) (*mspb.NodeLoginResponse, error)
	GetNodeId(*mspb.GetNodeIdRequest) (*mspb.GetNodeIdResponse, error)
	// Close closes the client.
	Close()
}

type Conn struct {
	Cli mspb.MsServerClient
	// contains filtered or unexported fields
}

type RPCClient struct {
	// contains filtered or unexported fields
}